Examples of genetic material that are uniparentally inherited in sexually reproducing eukaryotes are mitochondrial DNA and plastid DNA. Thus option C and D is correct.
Genetic material is the medium by which characteristics are transmitted from one generation to the next. In eukaryotes, genetic material is usually contained in the cell nucleus and organized into chromosomes.
There are some instances of genetic material, like mitochondrial DNA and plastid DNA, which are uniparentally inherited in sexually reproducing eukaryotes.
What is uniparental inheritance?
Uniparental inheritance, as the name implies, is a process of inheritance where a trait is passed down from only one parent to offspring. Uniparental inheritance is a process that typically happens in the cytoplasmic organelles of the cell, such as the mitochondria and plastids.
Thus, an example of the genetic material that is uniparentally inherited in sexually reproducing eukaryotes is the mitochondrial DNA and plastid DNA.
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in a chloroplast, where is carbon dioxide used to produce a carbohydrate?StromaThylakoidGranumOuter membrane
In a chloroplast, carbon dioxide is used to produce a carbohydrate in the stroma.
What is chloroplast?Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. They are membrane-bound organelles that contain chlorophyll pigments and other accessory pigments that are responsible for capturing light energy and converting it into chemical energy in the form of organic molecules, such as glucose. Chloroplasts are characterized by their inner and outer membranes, stroma, and thylakoid membrane system, which work together to carry out photosynthesis.
Here,
The stroma is a semi-liquid substance that is present inside the chloroplast and is the site of many important biochemical reactions, including the light-independent reactions of photosynthesis where carbon dioxide is fixed into carbohydrates such as glucose. The thylakoid and grana are other structures found within the chloroplast that are involved in the light-dependent reactions of photosynthesis, which generate energy and oxygen from sunlight. The outer membrane of the chloroplast helps to maintain the structure of the organelle and control the movement of molecules in and out of the chloroplast.
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Which of these is NOT an accessory structure of the skin?a. sebaceous glandsb. hairc. hair folliclesd. dermis
The D. Dermis is just not regarded as a skin accessory structure. The dermis, a true layer of skin beneath the epidermis, is home to many of the skin's auxiliary structures, including hair follicles, sebaceous glands, & sudoriferous sweat glands.
The skin also has hair, nails, sweat glands, & sebaceous glands as auxiliary structures. Melanin pigments give hair its colour, which it is comprised of dead keratinized cells. Our fingers and toes' extremities are shielded from mechanical harm by our nails, which are also formed of dead keratinized cells. The skin also has hair, nails, sweat glands, & sebaceous glands as auxiliary structures. These organs embryologically develop from the epidermis and also can descend into the hypodermis through the dermis.
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describe how two medical conditions might be helped by biofeedback therapy.
Biofeedback therapy is a type of treatment that involves using electronic monitoring equipment to provide patients with real-time feedback about their physiological responses.
By gaining awareness and control over their bodily functions, patients can learn to manage symptoms associated with certain medical conditions. Here are two examples of how biofeedback therapy can help with specific medical conditions:
Migraine headaches: Biofeedback therapy can help reduce the frequency and severity of migraine headaches. During biofeedback sessions, patients are taught to recognize the physiological signs that often precede a migraine attack, such as muscle tension and increased heart rate. By learning to recognize and control these responses, patients can reduce the intensity and frequency of migraines.
Urinary incontinence: Biofeedback therapy can help people who have difficulty controlling their bladder muscles. During biofeedback sessions, patients are taught to recognize and strengthen the pelvic floor muscles that are responsible for bladder control. By gaining control over these muscles, patients can improve bladder function and reduce urinary incontinence.
In both cases, biofeedback therapy can help patients gain greater awareness and control over their physiological responses, leading to improved symptom management and overall quality of life.
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A woman with a head injury has lost the ability to wiggle her toes. Describe how the area of the brain used for toe wiggling might be found using a CT scan.
if these two plants were to cross, what would the offspring look like? an offspring gets 1 allele from each parent for each trait. since there are two traits for each parent, the offspring will be represented by a four-letter genotype. fill in the genotype of the f1 offspring.
If these two plants were to cross, the offspring would be represented by a four-letter genotype.
What is a genotype?A genotype is the genetic composition of an organism, which is made up of genes inherited from its parents. The entire hereditary information of an organism is determined by its genotype (DNA).
What is an allele?A particular version of a gene is known as an allele. Every gene can have many alleles. Every organism possesses two copies of each gene, one inherited from each parent, which may or may not be the same. The alleles an individual carries influence the characteristics that will be expressed. When both alleles are identical, the individual is referred to as homozygous for that gene.
What is F1 offspring?The first filial generation (F1) is the result of the initial cross between two organisms. It refers to the offspring of the first generation. The F1 is produced when two parent organisms, both of which are homozygous for different alleles of the same gene, are crossed. These homozygous alleles are also referred to as true-breeding or purebred.
How to find the genotype of F1 offspring?An offspring receives one allele from each parent for each trait. Since there are two traits for each parent, the offspring will be represented by a four-letter genotype. To find the genotype of F1 offspring, the following steps can be followed:
Assign a letter to each allele.Determine the alleles of both parents.Write out all possible genotypes for the offspring.Count the number of occurrences of each genotype.Write out the probability of each genotype.Simplify the genotype probabilities by adding like terms.Write out the genotype of the F1 offspring.Learn more about genotype: https://brainly.com/question/902712
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name two special sense whose receptor are replaces throughout life and two special senses whose receptors cells are replaces so slowly that there can be no functional regeneration
Special senses whose receptors are replaced throughout life are smell and taste, whereas special senses whose receptor cells are replaced so slowly that there can be no functional regeneration are vision and hearing.
What are special senses?Special senses are the five senses, including vision, hearing, taste, smell, and touch, that are used to identify and respond to specific environmental stimuli that influence our perceptions, thoughts, and actions. These senses aid us in receiving input from the environment in order to survive, communicate, and interact with the world around us.
Special senses are critical to our survival and are often more complex than general senses, such as touch, pressure, pain, and temperature. Special senses include senses that rely on specialized receptor cells located in specific organs, including the eyes, ears, nose, tongue, and skin.
The human body's special senses are unique in that they are capable of detecting very distinct environmental stimuli, including light, sound, chemicals, and temperature. Each special sense relies on a specific type of receptor cell to receive and transmit environmental signals to the brain. These cells are typically located in specialized organs, such as the retina in the eyes, the hair cells in the inner ear, and the taste buds on the tongue.
Special senses whose receptors are replaced throughout life are smell and taste. Special senses whose receptor cells are replaced so slowly that there can be no functional regeneration are vision and hearing.
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plants in the mustard family produce a unique kind of dehiscent fruits called that split along two side seams and bear seeds on a central partition or membrane. when these fruits are less than three times as long as they are wide, they are called
Plants in the Mustard Family produce a unique kind of dehiscent fruits called siliques that split along two side seams and bear seeds on a central partition or membrane. When these fruits are less than three times as long as they are wide, they are called silicles.
Siliques are defined as fruits that are long, narrow, and cylindrical in shape, with two chambers separated by a membranous septum bearing seeds attached to the central partition. They are elongated, tapered fruits that typically have a length that is more than three times their width. Plants in the mustard family, or Brassicaceae, produce siliques.
A silicle is a type of fruit that is shorter and broader than a silique, less than three times as long as it is wide, and that splits open along two side seams to reveal a central partition or septum-bearing seeds. It is a dry fruit that is similar to a capsule, and the fruits produced by many members of the Brassicaceae family are considered to be silicles rather than siliques when they are shorter than three times their width.
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how does the life cycle of an average-sized star differ from the life cycle of a high-mass star?
The life cycle of an average-sized star like the sun starts with the collapse of a cloud of gas and dust under the force of gravity.
As the cloud collapses, it becomes more massive and heats up, eventually reaching a temperature and density that allow nuclear fusion reactions to occur in its core. These fusion reactions convert hydrogen into helium, releasing energy in the form of light and heat.
This phase called the main sequence, can last for billions of years, during which the star is stable. In contrast, high-mass stars have a much shorter lifespan and a more explosive end. Due to their high mass, they burn through their fuel at a much faster rate, causing them to evolve more quickly.
They also undergo a series of nuclear fusion reactions, creating heavier elements in their cores. Eventually, these stars will run out of fuel, and the core will collapse. This collapse triggers a supernova explosion that can be more than 10 times brighter than an average-sized star. After the explosion, the core may collapse further, forming a black hole or a neutron star.
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Summarize how the fossil cetacean ancestors changed over time. Give at least one example of a specific trait and how it changed
The cetacean ancestors, which were land-dwelling mammals, changed over time through a series of evolutionary adaptations that eventually led to their transformation into aquatic animals such as whales, dolphins, and porpoises.
One of the key changes involved the evolution of their limbs, which gradually transformed into flippers for efficient swimming. Over time, their nostrils moved from the front of their snouts to the top of their heads, forming blowholes, allowing them to breathe while swimming. Another change was the development of a streamlined body shape, reducing drag and making swimming more efficient. One specific trait that changed was their teeth. The earliest cetacean ancestors had teeth similar to their land mammal ancestors, but over time, their teeth became more specialized for hunting and capturing prey underwater, with some species losing teeth entirely and developing baleen instead.
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outside the body, sugar can catch fire and burn in an exergonic reaction. inside the body, we also talk about burning sugar in an exergonic reaction, but it never catches fire. why not?
When sugar (glucose) is burned outside the body, it reacts with oxygen in a highly exergonic reaction that produces energy, heat, and carbon dioxide.
This process is called combustion and is accompanied by a flame due to the rapid release of energy in the form of heat and light.
However, inside the body, the process of burning sugar (glucose) is not the same as combustion. Instead, it undergoes cellular respiration, which is a controlled series of exergonic reactions that occur in tiny steps to extract energy from glucose without creating a flame.
The enzymes in our cells facilitate this process by breaking down glucose into smaller molecules that can be used to produce ATP, the molecule that powers cellular activities. Thus, the energy is released slowly and in a controlled way, which prevents the production of heat and the risk of fire.
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Of all the theoretically possible statements about the Calvin Cycle, which one is impossible?
a. Glycolysis can help regenerate RuBP (ribulose biphosphate)
b. The G3P made could turn the Calvin Cycle into an amphibolic pathway
c. Three cycles of the Calvin Cycle generates one glucose molecule
d. The product of oxidative phosphorylation can be the reactant of the Calvin Cycle.
Of all the theoretically possible statements about the Calvin Cycle, the statement that glycolysis can help regenerate RuBP (ribulose biphosphate) is impossible.
What is the Calvin Cycle?The Calvin cycle, also known as the dark reaction or light-independent reaction, is a biochemical pathway in plants that aids in the production of glucose from carbon dioxide and water. During the Calvin cycle, carbon dioxide is lowered and fixed by the assistance of ATP and NADPH, which are produced during the light reaction of photosynthesis.What is RuBP?RuBP stands for ribulose biphosphate, which is a molecule that is essential to the Calvin cycle. This molecule combines with carbon dioxide and is reduced in a series of enzyme-catalyzed reactions to create glucose. The regeneration of RuBP is necessary for the continuation of the Calvin cycle. However, it is not possible for glycolysis to aid in this regeneration, as the two pathways are distinct and have different functions.
What is oxidative phosphorylation?Oxidative phosphorylation is the final phase of cellular respiration, in which energy is generated by the conversion of ADP to ATP. Electrons are passed through a series of redox reactions in the electron transport chain, which results in the generation of a hydrogen ion gradient across the mitochondrial membrane. The energy from this gradient is then used to drive ATP synthesis. While it is possible for the product of oxidative phosphorylation, ATP, to be used as a reactant in the Calvin cycle, it is not possible for the reverse to occur. Glycolysis and the Calvin cycle are two separate pathways and cannot interconvert.
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Antimicrobial agents that damage nucleic acids also affectA) the cell wall.B) the cell membrane.C) the viral envelope.D) endospores.E) protein synthesis.
Antimicrobial agents that damage nucleic acids also affect the viral envelope. So the correct answer is option C.
Nucleic acids are molecules that carry the genetic information of living organisms. These are found in the form of DNA and RNA. Antimicrobial agents target nucleic acids and disrupt their function leading to inhibition or destruction of the cell. However, the viral envelope is not made of nucleic acids. It is the outermost layer of the virus that protects the genetic material inside. Antimicrobial agents that damage nucleic acids also affect the viral envelope by disrupting the integrity of the membrane that holds the virus together.
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Maras dad breeds chameleons of different colors. The bright green chameleons are the best sellers. Therefore, he purposefully breeds the bright green ones together to reproduce as many as possible. This is an example of
Mara's dad is purposefully breeding the bright green ones together to reproduce as many as possible, this is an example of artificial selection.
Mara's father raises chameleons of various colours. The most popular chameleons are those that are vivid green. He deliberately crosses the bright green ones to produce as many offspring as he can.
Artificial selection can be seen in this situation.
It is the marking of attractive characteristics in plants and animals by humans, as well as the actions taken to enhance and perpetuate such characteristics in subsequent generations.
Let's define artificial selection. Artificial selection, often known as "selective breeding," occurs when humans choose desirable qualities in animals or agricultural byproducts rather than allowing the species to evolve naturally, as in natural selection.
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Where does the energy come from to add a uracil to the 3' end of a transcript? the cell's supply of ATP the hydrolysis of all three phosphate groups from the incoming UTP molecule the hydrolysis of pyrophosphate from the incoming UTP molecule the hydrolysis of a terminal phosphate from the incoming UTP molecule the energy released by allowing the uracil to complementary base pair with an adjacent thymine Which one of the following RNA types is MOST abundant in mammalian cells? snRNA mRNA rRNA tRHA miRNA Which one of the following statements about RNA is CORRECT? RNA uses the same pyrimidine bases as DNA. RNA has the same 5-carbon sugars as DNA. RNA uses the same purine bases as DNA. RNA is a more stable molecule than DNA. All of these choices are correct.
The entering UTP molecule breaks down the pyrophosphate.
Where can one find uracil?The nitrogenous base uracil is one of the four found in the RNA molecule. Except for the substitution of thymine for uracil, all of these nitrogenous bases are also present in deoxyribonucleic acid, including the pyrimidine-derived uracil and cytosine, as well as the purine-derived adenine and guanine (DNA).
Why does DNA substitute thymine for uracil?DNA uses thymine rather than uracil because it offers a stronger protection against photochemical change and makes the genetic information more robust. To store all the info required for life to function, this is required.
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of the following statements, which is/are usually true if the genes for two different characters are linked?
Linked genes are genes that are physically located close together on a chromosome.
Of the following statements, the ones that are usually true if the genes for two different characters are linked are:
1. Crossing over between the linked genes is likely to occur more frequently than in genes that are located on different chromosomes.
2. During the process of meiosis, the linked genes tend to stay together.
3. A change in the phenotype of one linked gene may have an effect on the phenotype of the other linked gene.
Crossing over is a process that occurs during meiosis in which homologous chromosomes exchange genetic material. Linked genes are more likely to experience crossing over than genes that are located on different chromosomes because they are in close proximity to each other. During meiosis, these linked genes tend to stay together, or be inherited together. Additionally, a change in the phenotype of one linked gene may have an effect on the phenotype of the other linked gene, due to the close proximity of the two genes.
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The masseter is innervated by the ______ branch of the trigeminal nerve. a. mandibular b. ophthalmic c. lingual d. maxillary.
Answer:
A
Explanation:
It is a branch of the mandibular nerve
Dominant females usually allow males to mate with them more than subordinate females. True or False
Answer:
This statement is False. In many animal species, dominant females have priority access to mates and may actively exclude subordinate females from mating with males. This behavior is known as female mate choice and is often observed in species with a polygynous mating system. In some cases, dominant females may also engage in mate guarding behavior to prevent subordinate females from mating with the same males. However, the specific mating behaviors of a species can vary greatly depending on factors such as social structure, ecology, and reproductive biology.
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which of the following is an advantage of a kinase cascade? group of answer choices amplifies signal during the process of transduction slows signal transduction to prolong signal uses less energy than a non-cascade pathway none of the above
One advantage of a kinase cascade is that it amplifies the signal during the process of transduction. This is achieved by a sequential activation of kinases, where one kinase activates another kinase and so on until the final kinase in the cascade is activated.
What is a kinase cascade?A kinase cascade is a sequence of events that involves the activation of multiple kinases, which results in the amplification of a signal during the process of signal transduction. A kinase is an enzyme that transfers phosphate groups from ATP to a target protein, which can activate or deactivate the protein's activity or alter its location in the cell.
What is signal transduction?Signal transduction is a process that occurs when a cell receives an external signal that is then converted into a cellular response. This process is mediated by a series of signaling molecules, including hormones, neurotransmitters, and growth factors, which activate receptors on the cell surface that initiate a signaling pathway leading to a response by the cell. The response can include changes in gene expression, metabolism, movement, and cell division, among others.
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Which statement is true about disruptive natural selection?
Responses
It results in an averaging of traits.
It results in an averaging of traits.
It favors one trait over all others.
It favors one trait over all others.
It results in an even distribution of traits.
It results in an even distribution of traits.
It favors extremes in traits.
The statement "It favors extremes in traits" is true about disruptive natural selection.
What is Disruptive natural selection?Disruptive natural selection occurs when extreme traits are favored over intermediate traits, leading to a bimodal distribution of traits in a population. This means that individuals with extreme traits at both ends of the distribution have a higher fitness compared to individuals with intermediate traits. As a result, the population becomes less homogeneous and more specialized in the extreme traits that are favored by natural selection.
What kind of natural selection is disruptive?Oysters of different colors—dark and light—are one instance of disruptive selection. Oysters with dark or light colours can blend in more effectively. Dark oysters can hide behind the shadow of the rocks, whereas light oysters can blend in with the rocks.
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what does an antigen-presenting cell do to the resulting peptide fragments of a microbe once digestion is complete?
An antigen-presenting cell processes peptide fragments of a microbe into epitopes. Thus, antigen-presenting cells play a critical role in initiating adaptive immune responses to microbial pathogens.
Epitopes are small regions of the peptide that can be recognized by T cells in the immune system. An antigen-presenting cell (APC) is a type of cell in the immune system that displays antigen complexes with major histocompatibility complexes (MHCs) on their surfaces to T cells. This process is called antigen presentation. Antigen-presenting cells include dendritic cells, macrophages, and B cells. APCs have a critical role in initiating and regulating immune responses. T cells are responsible for recognizing epitopes presented by antigen-presenting cells. Antigen-presenting cells process peptide fragments of microbes into epitopes. Epitopes are small regions of the peptide that can be recognized by T cells in the immune system. T cells only recognize epitopes that are bound to MHC molecules on antigen-presenting cells. MHCs are essential for presenting epitopes to T cells, which recognize them through their T cell receptor.
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an atom of mystery element contains 92 protons. what element is it?
An atom of a mystery element contains 92 protons. This element is uranium (U). It has 92 protons and an atomic number of 92, which is the number of protons in the nucleus of an atom.
The atomic number of an element is determined by the number of protons in its nucleus. In this case, there are 92 protons in the nucleus of the mystery element. Uranium is the element that has an atomic number of 92 since it has 92 protons in its nucleus.
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. It is a dense metal that is silvery-white in color when polished.
The term "uranium" refers to the element in both the natural and artificial contexts. Uranium is radioactive, as are all other elements with atomic numbers above 84. Uranium is a fuel for nuclear power plants and weapons due to its high radioactivity.
Uranium ore is found in large quantities in the Earth's crust and can be mined to produce uranium fuel for nuclear power plants.
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A person with type O blood has _______.a. neither A nor B agglutinogensb. O antigensc. O agglutininsd. neither anti-A nor anti-B agglutinins
Type O blood does not contain either A or B agglutinogens. Antigens are another name for agglutinogens.
What agglutinins are present in blood types O?Plasma from people with Type O blood contains agglutinins (antibodies) a and b. Any type A blood cells that might enter the circulatory system are assisted by antibody A in being destroyed by the body. Any type B blood cells that might enter the circulation system are helped by antibody b to be destroyed by the body.
Is Type O capable of producing B agglutinin?As a result, in humans, type O has neither antigen nor agglutinin, type A has both antigens (A and B), type B has both antigens (B and A), and type AB has neither antigen nor agglutinin. also see blood typing.
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the central dogma of molecular biology is that information is transferred from
The central dogma of molecular biology is that the information is transferred from DNA to proteins via the RNA.
DNA stands for Deoxyribonucleic Acid. It is genetic ,material in majority of the organisms. The DNA is a double stranded structure with phosphate group, deoxyribose sugar and four types of nucleotides: adenine, guanine, cytosine and uracil.
Proteins are the main function unit of the genetic information present in DNA. The proteins are biomolecules formed by the monomeric unit called amino acids. The proteins are involved in every process inside the body. The formation of protein from the m-RNA takes place in the ribosomes.
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when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that . read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that . artificial selection becomes a greater factor in microevolution gene flow between populations is reduced microevolution no longer occurs the founder effect becomes increasingly important
When most populations of a wide-ranging amphibian species are lost, and the few remaining populations are widely separated, we expect to see that the founder effect becomes increasingly important.
The founder effect is when a few individuals of a species colonize an isolated area and become the founders of a new population. This new population can have different genetic characteristics than the original population, leading to different levels of gene flow, selection pressures, and other microevolutionary processes.
As the population size of the species decreases, the founder effect becomes increasingly important in shaping the gene pool and populations of the species.
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Notice that a couple of things are different from the previous charts. Firstly, the derived traits and species name have switched axis. Secondly, you will see that in this chart there are derived traits that have evolved independently in different organisms. Use the principle of maximum parsimony to make a draft of the cladogram. The theory of maximum parsimony states that the simplest explanation consistent with the data should be examined first. The most parsimonious trees require the fewest evolutionary events. Construct your own cladogram using the information from the chart as a guide.
Derived Trait 1 2 4 6. 7 8. Lamprey Salmon 1 1 Tuna 1 1 1 1 Mackerel 1 1 Trout 1 1 1 1 Halibut 1 1 1 1 1 Mahi Mahi 1 1 1 1 1 1 1 Construct vour cladogram in the space below: Species 3.
The most parsimonious tree requires three evolutionary events: first the split between Lamprey and the other species, then the split between the Salmon, Tuna, and the Mackerel, and then the split between the Trout, Halibut, and Mahi Mahi.
Evolutionary is a term that refers to the process of change over time. It is based on the scientific theory of natural selection, which states that organisms that are better adapted to their environment will survive and reproduce at a higher rate than those that are not. Evolutionary change can occur over a short period of time (microevolution) or a long period of time (macroevolution).
This tree shows the evolutionary relationships between the species based on the shared derived traits.
Lamprey
|
Salmon
_________________
| |
Tuna _______________ Trout
| |
Mackerel _________ Halibut
|
Mahi Mahi
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It is estimated that zinc binds to about ______ of all proteins in the body. please choose the correct answer from the following choices, and then select the submit answer buttona. 5%b. 10%c. 15%d. 20%
Zinc is estimated to bind to about 10% of all proteins in the human body. So, the correct answer is letter b.
Facts about zincZinc is a micronutrient that is essential for the growth and development of the body. It helps to regulate the immune system, support healthy growth during childhood and help to maintain healthy skin, hair, and nails.
Zinc plays a critical role in protein synthesis, which is the process of building proteins in the body. It is estimated that zinc binds to about 10% of all proteins in the human body. Zinc is an important mineral that the human body needs to stay healthy. It is involved in many different functions throughout the body, including immune system function, DNA synthesis, and protein synthesis. Overall, zinc is an essential nutrient that plays a vital role in the overall health and well-being of the human body.
Therefore the correct choice is the letter "b".
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many people dislike the taste of leafy greens such as kale or mustard greens. this makes sense, because these vegetables activate ____ taste receptors, which are also activated in response to plants that are toxic.
Many people dislike the taste of leafy greens such as kale or mustard greens. This makes sense because these vegetables activate bitter taste receptors, which are also activated in response to plants that are toxic.
What are taste receptors?
Taste receptors are specialized cells in the mouth that detect different kinds of tastes. Taste receptors are responsible for the sensation of taste. Our tongue is dotted with thousands of taste buds, which contain taste receptors. The human mouth can detect five different types of tastes: sweet, salty, sour, umami (savory), and bitter.
Taste receptors respond to chemical compounds found in the food we eat. Food molecules are recognized by the receptors on the taste buds, which then send a signal to the brain. This signal is then interpreted as a particular taste.
How do taste buds work?
Taste buds are clusters of cells that sense taste. There are many taste buds located on the tongue, as well as in the mouth, throat, and epiglottis. Each taste bud is made up of several different types of cells. The most important of these cells are the taste receptor cells.
Taste receptor cells contain special proteins called taste receptors. These receptors are responsible for detecting the different kinds of tastes. When a taste receptor is activated, it sends a signal to the brain. The brain then processes this signal and interprets it as a particular taste.
What are the different types of taste receptors?
There are several different types of taste receptors. These include sweet, sour, salty, bitter, and umami (savory). Sweet taste receptors are activated by sugars, while sour taste receptors are activated by acids. Salty taste receptors are activated by sodium ions. Bitter taste receptors are activated by certain chemicals found in many plants, while umami receptors are activated by glutamate, an amino acid found in many foods.
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how is isoelectric focusing used used to separate 2 proteins of equivalent molecular weights using sds page?
Isoelectric focusing (IEF) is a technique used to separate proteins based on their isoelectric point (pI) while SDS-PAGE is a technique used to separate proteins based on their molecular weight.
The SDS-PAGE technique is an extension of the traditional electrophoresis method that allows separation based on molecular size. SDS-PAGE is a highly useful technique, but it has certain limitations. The method is only able to distinguish proteins based on their molecular weight (MW) rather than their isoelectric point (pI). .IEF allows the separation of proteins based on their isoelectric point (pI), a property that is dependent on the number and nature of the amino acid residues in the protein molecule. The pI is the pH at which a protein has a net charge of zero, and it is unique to each protein. In IEF, proteins are separated based on their pI rather than their MW. This makes IEF highly complementary to SDS-PAGE.
However, it is possible to use a technique called isoelectric focusing (IEF) to separate two proteins with the same molecular weight. IEF can be utilized in combination with SDS-PAGE to provide highly effective protein separation .
Thus, by using IEF before SDS-PAGE, proteins that have the same MW but different pI can be separated, providing highly effective protein separation.
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which component is not directly involved with transcription? group of answer choices trna mrna dna rutp
Answer: The component that is not directly involved with transcription is RUTP. RNA Uracil Triphosphate (RUTP) is a cofactor used in the synthesis of proteins but is not directly involved in the process of transcription.
Explanation: Transcription is the process in which genetic information encoded in DNA is used to create messenger RNA (mRNA). This process is an important step in the production of proteins, which are essential for the growth, development, and function of all living organisms.
The steps involved in the transcription process are as follows:
Initiation: RNA polymerase binds to the promoter region of DNA and starts transcribing the DNA molecule.
Elongation: RNA polymerase reads the DNA sequence and synthesizes a complementary RNA strand.
Termination: RNA polymerase stops synthesizing RNA when it reaches a terminator sequence, which marks the end of the gene.
The components involved in transcription are as follows:
mRNA (messenger RNA): This is the RNA molecule that carries the genetic information from DNA to the ribosome.
TRNA (transfer RNA): This is the RNA molecule that carries amino acids to the ribosome, where they are assembled into a protein.
RNA polymerase: This is the enzyme that catalyzes the synthesis of RNA from a DNA template.
Ribosomes: These are the cellular structures where protein synthesis occurs.
DNA (Deoxyribonucleic acid): DNA stores the genetic code that is used to synthesize RNA, which, in turn, is used to synthesize proteins.
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Based on the video and what you know about natural selection, which of the following must be true if evolution is the explanation for what the Grants have observed over time on Daphne? Select all that apply.All organisms are descended from one or a few common ancestors. [ Select ] ["yes", "no"]Characteristics acquired during the life of an individual are passed on to its offspring. [ Select ] ["yes", "no"]
Heritable variations occur in natural populations. [ Select ] ["yes", "no"]
Life has a long evolutionary history. [ Select ] ["yes", "no"]
Species are not fixed but change over time. [ Select ] ["yes", "no"]
The answer is Yes
All organisms are descended from one or a few common ancestors. [yes]
Characteristics acquired during the life of an individual are passed on to its offspring. [no]
Heritable variations occur in natural populations. [yes]
Life has a long evolutionary history. [yes]
Species are not fixed but change over time. [yes]
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