A mutation that actually interferes with the function of the wild-type allele by specifying polypeptides that inhibit, antagonize, or limit the activity of the wild-type polypeptide is known as Dominant negative mutation.
Dominant negative mutation refers to a genetic alteration that can disrupt or prevent the action of a typical (wild-type) protein. A protein's structural or functional properties may be affected by the mutation, reducing the effectiveness of the gene. This mutation's influence can be demonstrated in a heterozygous organism, where the presence of a wild-type allele may be suppressed by the mutated allele. The allele's adverse effect is so strong that it will overcome the wild-type phenotype, making the recessive allele's influence irrelevant. Their polypeptides function by inhibiting, antagonizing, or limiting the action of a typical (wild-type) polypeptide.
However, A dominant negative mutation interferes with a protein's activity, frequently causing it to lose its ability to interact with other proteins or DNA. This results in the formation of dysfunctional protein complexes that can result in a variety of illnesses.
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microscopy someone would like to look at living algee and water what kind of equipment should you use
Microscopy is the study of small organisms with the aid of a microscope. Observing living algae and water under a microscope requires special equipment. The appropriate equipment to use when observing living algae and water under a microscope is known as a wet mount.
What is a wet mount? A wet mount is a technique used in microscopy to observe living organisms in their natural habitat. A drop of liquid containing the organism is placed on a microscope slide and covered with a cover slip. A wet mount is suitable for observing living organisms since it does not kill or distort their natural shape.
The following are the materials needed to create a wet mount for microscopy: Microscope slide, Coverslip, Dropper tube, or pipette. The microscope can be used to observe living algae and water by creating a wet mount slide. The wet mount slide has an advantage over other microscopy techniques in that it is simple and easy to use.
A wet mount slide is also less prone to error since it does not involve complicated or delicate procedures.
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Determine whether the two events are mutually exclusive. Explain your answer. a. Randomly selecting a female student Randomly selecting a student who is a Bachelor b. Randomly selecting a person with type A blood Randomly selecting a person with type O blood c. Rolling a die and getting an odd number Rolling a die and getting a number less than 3 d. Randomly selecting a person who is under 21 years of age Randomly selecting a person who is over 30 years of age
The two mutually exclusive events are options b and d.
Two events are mutually exclusive when they cannot occur at the same time. The probability of these events occurring simultaneously is zero.
Option b. is a mutually exclusive event because a person can't have both type A and type O blood at the same time. Option d. is also a mutually exclusive event because a person cannot be younger than 21 and older than 30 at the same time,
Options a. and c. are not mutually exclusive events because they can occur at the same time. The female student can be a graduate and when rolling the die she can get an odd number less than 3, which would be the number 1.
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When a neuron is at rest, the K+ ________
gradient favors K+ diffusion out of the cell while the ________ gradient favors K+ diffusion into the cell .
A. concentration; electrical
B. concentration; concentration
C. electrical; electrical
D. electrical; concentration
Answer:
A. concentration; electrical
which hormones can have effects on all cells and are responsible for establishing the basal metabolic rate?
Thyroid hormones can have effects on all cells and are responsible for establishing the basal metabolic rate.
The thyroid gland produces two primary hormones, triiodothyronine (T3) and thyroxine (T4), which are regulated by the pituitary gland through the secretion of thyroid-stimulating hormone (TSH). Once secreted into the bloodstream, these hormones bind to receptors within cells and activate specific genes that are involved in various cellular processes, including metabolism and energy production.
The levels of thyroid hormones in the body are tightly regulated and any imbalances can result in a range of conditions, including hypothyroidism and hyperthyroidism.
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in photosynthesis, what is the primary electron donor in the etc?
The primary electron donor in the ETC in photosynthesis is water molecules.
What is the cell process of photosynthesis in plants?
The cell process of photosynthesis in plants relates to the production of glucose and similar simple carbs by using water sunlight and carbon dioxide as reactants, which requires a series of oxide reduction reactions or redox reactions that involve the acceptor of electrons such as water.
Therefore, with this data, we can see that the process of photosynthesis in plants is a series of redox reaction that the land use to produce carbohydrates.
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A part of a chromosome of a fungus was sequenced, it contained 28% thymine(T). What percent would by adenine (A)
Adenine always couples with thymine, and nucleotides always pairs with guanine, according to Chargaff's rule. Hence, the ratio of A to T must be about equal.
If Dna is found 28% herringbone, and which amount of guanine is there?Adenine binds to Thymine, followed by Cytosine binds to Guanine, so first, remember your strands. As a result, 28% Adenine must also be 28% Thymine. 28+28 = 56%, thus subtracting it from 100 yields the remaining proportion, or 44%, which must be divided between cytosine and guanine, each of which accounts for 22%.
If Cells contain 20% adenine groups, what percent if purines is present?Thymine is 20percentage points as well since adenine is 20%. Together, they account for 40%. The remaining 60% , 100 be divided evenly between the two amino acids, making each one 30%. While uracil does not exist in DNA, it shares thymine's proportion.
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if you mate a dog with a bbee genotype to a dog with a bbee genotype, what percent of each phenotype would you expect over the course of many litters?
If you mate a dog with a bbee genotype to a dog with a bbee genotype, you can expect 25% of each phenotype over the course of many litters.
What is a phenotype?A phenotype is an observable characteristic that arises from an individual's genotype. For example, the color of an individual's eyes, fur, or feathers is a phenotype, as is their ability to taste certain foods or produce specific enzymes. The phenotype is determined by the genotype, or the genetic makeup, of an individual.
How are phenotypes determined?A single gene or a group of genes determines an organism's phenotype. The expression of a gene is referred to as its genotype, while the physical, observable characteristics that arise as a result of that expression are referred to as the phenotype.
A Punnett square is a tool used to calculate the possible results of a genetic cross between two parents with known genotypes. A Punnett square can be used to determine the probability of each phenotype or genotype for their offspring when given the parents' genotypes.
In the question, the two parent dogs have a Bbee genotype, which implies they both possess one dominant B allele and one recessive b allele, as well as two copies of the recessive e allele. A Punnett square can be used to determine the possible genotypes and phenotypes of the offspring. When crossing the two parent dogs in the Punnett square, the following results are obtained:
bbEeBbEeBbEebbeeBbEeBbeeBbEeBbEebbeeBbeeBbEebbeeBbeeBeeBbeeBebe
The following phenotypes are expected to occur in the offspring:
brown with eyes that are not white: 1/4 or 25%
brown with eyes that are white: 1/4 or 25%
black with eyes that are not white: 1/4 or 25%
black with eyes that are white: 1/4 or 25%
Thus, in the course of many litters, you can expect a 25% occurrence of each phenotype.
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what another name for a single skeletal muscle cell is a?
Muscle fiber is another name for a solitary skeletal muscle cell. These are big multinucleated cells with cross-striations as their most noticeable histological feature.
A skeletal muscle is made up of individual, long cylindrical cells called muscle fibers. Myofibrils, specific structures that give muscle fibres their unique ability to contract and produce force, are found within the connective tissue that surrounds them. Fascicules, which are collections of muscle fibers encircled by more connective tissue, are known as fascicles. The entire muscle is made up of these fascicles that are then bundled together. Muscle fibers contract when triggered by a nerve impulse, causing the muscle to move.
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How do scientists use comparative embryology for evidence of evolution? (Use the photo provided to explain. SPAM ANSWERS = INSTANT REPORT.)
match the following organelles/structures with whether they are found in plant cells, animal cells, or both plant and animals (use the letters in the blanks to answer the questions).
Organelles or structures that are present in cells are given below:
Animal Cells: membrane plasma, Cytoplasm, Nucleus, Lysosomes, Centrioles.Plant Cells: cell wall, Membrane plasma, Chloroplast, Cytoplasm, Central vacuole, Nucleus.Organelles in cellsSome organelles are present only in animal or plant cells, while others are present in both. Some are the following:
Cell wall: provides structural support and protection in plant cells.Plasma membrane: regulates the passage of substances into and out of the cell.Chloroplast: converts light energy into chemical energy through photosynthesis in plant cells.Cytoplasm: houses the cell's organelles and is the site of many cellular processes.Central vacuole: stores water, nutrients, and waste products in plant cells.Nucleus: contains and protects the cell's genetic material and controls gene expression.Lysosomes: contain digestive enzymes that break down waste materials and cellular debris in animal cells.Centrioles: help to organize the cell's cytoskeleton and are involved in cell division in animal cells.The complete question is attached in the image below.
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What is the group of macro nutrients ?
(a) N, P, K, Ca, Mg, S (b) Zn, Cu, Mo, Cl, Fe
(c) N, P, K, Zn, Ca, Mg (d) Cl, Zn, Mn, Ba
which of these is the most recent adaptation of plants for life on land?
A water-repellent cuticle, stomata that control water evaporation, specialised cells that give stiff support against gravity, and specialised structures that capture sunlight are just a few examples of how plants evolve.
In order for terrestrial plants to grow, seeds are essential. Sexual organs, a multicellular embryo shielded by parental tissue, a vascular transport system, and rhizoids, roots, and root hairs necessary for soaking up nutrients and water are all present. Haploid and diploid generations alternate. The construction and upkeep of developmental programmes required for plants to adapt to life on land rely on the regulation of gene expression for the evolution of morphological variation. The genetic and molecular mechanisms behind morphological variation and plant adaptation to land are still poorly understood, despite advances in these fields.
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how do different types of photopigments differ from one another?
Different types of photopigments differ from one another based on the specific wavelengths of light they absorb and the color vision they enable.
Photopigments are proteins found in the cone cells of the retina, responsible for detecting light and color vision.
There are three types of cone cells in the retina, each containing a different type of photopigment that responds to different wavelengths of light: blue, green, and red. These photopigments are called opsin and they bind with a chromophore called retinal to form the complete photopigment.
Each type of opsin has a slightly different amino acid sequence, which determines the wavelengths of light it absorbs most effectively, and hence the color vision it enables. For example, the blue opsin absorbs shorter wavelengths of light, while the red opsin absorbs longer wavelengths. When different combinations of photopigments are stimulated by light, the brain can interpret the information to perceive a range of colors. Overall, the differences in the amino acid sequences of the opsin photopigments determine their spectral sensitivity and enable us to perceive different colors.
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8. Most organisms were unable to live in the area for the first six months after the eruption. After the pioneer species, what organisms to you expect to begin inhabiting the area?
[] secondary consumers
[] tertiary consumers
[] primary consumers
[]autotrophs
9. Two types of stickleback fish are found in a lake in British Columbia. One kind of stickleback is large, lives on the bottom of the lake, and eats other fish. The second kind of stickleback is small, lives in the open water, and eats plankton.Based on this information, which of the following statements most likely describes the two kinds of stickleback fish?
[] they are different populations of fish
[] they are different communities of fish
[] are they the same population of fish
[] are they the same community of fish
8. After the pioneer species, you would expect primary consumers, such as autotrophs, to begin inhabiting the area.
9. The two kinds of stickleback fish seen are different populations of fish.
8. Pioneer species are the first organisms to colonize a new area after a disturbance, such as a volcanic eruption. They are often autotrophs, such as lichens or algae, that can survive in harsh conditions.
Over time, as the pioneer species break down rocks and other materials and add organic matter to the soil, other organisms are able to move in. This includes primary consumers, which are organisms that eat autotrophs.
Therefore, it is expected that primary consumers will begin inhabiting the area after the pioneer species.
9. Populations are groups of organisms of the same species that live in the same area and interact with each other. In this case, there are two different types of stickleback fish, one large and bottom-dwelling and the other small and living in the open water.
These two types of fish are both sticklebacks, but they have different traits and habitats, which suggests that they are different populations.
A community, on the other hand, is all of the populations of different species that live in the same area and interact with each other.
Therefore, it would be correct to say that the two different populations of fish are seen.
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Look at the following sketch: What is illustrated in this sketch? Describe the term given in your answer in Question ?1
a person that has only a antigens on their red blood cells has type blank blood, while a person who has only b antigens will have type blank blood. a person who has both a and b antigens has type blank blood, and a person that has neither a nor b antigen has type blank blood. multiple choice question. ab; a; b; o
A person who has both A and B antigens has type AB blood, and a person that has neither A nor B antigens has type O blood group. Thus, the correct option is D.
What is Blood group?A person that has only A antigens on their red blood cells has type A blood, while a person who has only B antigens will have type B blood. A person who has both A and B antigens has type AB blood, and a person that has neither A nor B antigens has type O blood.
A person that has only A antigens on their red blood cells has type A blood, while a person who has only B antigens will have type B blood.
A person who has both A and B antigens has type AB blood, and a person that has neither A nor B antigens has type O blood.
Therefore, the correct option is D.
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le.
(b)
(i)
The diagram shows the gill filaments of a bony fish. The flow of water across the gill plates
is shown.
capillaries
(ii)
gill filament
Š
gill plate
water current
Draw an arrow on a capillary to show the direction of blood flow in the gill plate. [1]
Use the letter H, to indicate on the diagram, an area where there is the highest
concentration of oxygen in the blood of the gill plate.
Use the letter L to indicate where there is the lowest concentration of oxygen in the
water passing over the gill plate.
[2]
(iii) Name this type of flow and explain how it improves the efficiency of oxygen uptake.
[2]
Answer:
(b)
(i)
Here is the labeled diagram of the gill filaments of a bony fish, with the requested arrow and labels:
markdown
Copy code
capillaries
↓
(ii) Š
↑ gill plate
│ water current
│
H L
(ii)
The letter H indicates an area where there is the highest concentration of oxygen in the blood of the gill plate, which is at the end of the capillary bed closest to the water flow. The letter L indicates where there is the lowest concentration of oxygen in the water passing over the gill plate, which is at the end of the gill filament farthest from the water flow.
(iii)
This type of flow is called countercurrent flow. It improves the efficiency of oxygen uptake because it maintains a concentration gradient between the water and the blood across the entire length of the gill filament. As the water flows over the gill filaments, oxygen diffuses from the water into the blood of the capillaries. Because the concentration of oxygen is always higher in the water than in the blood, oxygen continues to diffuse across the entire length of the filament. This ensures that the blood leaving the gill filament at the end closest to the heart has the highest possible concentration of oxygen. If concurrent flow were used, where water and blood flow in the same direction, the concentration gradient between the water and blood would be reduced along the length of the gill filament, resulting in less efficient oxygen uptake.
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During what phase of mitosis do the chromosomes line up on the equator of the cell? Select one:
a. prophase
b. telophase
c. anaphase
d. interphase
e. metaphase
The phase of mitosis during which chromosomes line up on the equator of the cell is metaphase. Therefore the correct option is option E.
Mitosis is a cell division process that occurs in most eukaryotic cells. In this process, a parent cell produces two identical daughter cells. Mitosis has five stages: prophase, metaphase, anaphase, telophase, and interphase.
Chromosomes are visible and condense during mitosis, as a result of the coiling of DNA around proteins called histones.Mitosis can be divided into four distinct stages: prophase, metaphase, anaphase, and telophase. During metaphase, the chromosomes line up on the equator of the cell, which is known as the metaphase plate.
The centromeres of the chromosomes are located on the metaphase plate. Chromosomes can then be separated and pulled to opposite poles of the cell during anaphase.
The spindle fibers of the cell, which are microtubules that connect the centrosomes to the chromosomes, are responsible for the separation and movement of the chromosomes. Therefore the correct option is option E.
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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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the type of muscle fibers that are used to maintain posture in the back muscles are primarily
The type of muscle fibers that are used to maintain posture in the back muscles are primarily slow-twitch fibers or Type I fibers.
These muscle fibers are also known as red fibers due to the presence of myoglobin that binds oxygen in the muscle cell. The function of the back muscles is to maintain posture and support the weight of the upper body. Slow-twitch muscle fibers are best suited for this function as they are able to contract and maintain tension for longer periods of time, without fatiguing quickly. Slow-twitch fibers have a high concentration of mitochondria which are responsible for generating energy for the muscle cell through aerobic respiration. Slow-twitch fibers also have a high concentration of capillaries which deliver oxygen to the muscle cell. This is important as oxygen is required for aerobic respiration to occur which generates energy in the muscle cell. Slow-twitch fibers are also able to store more glycogen than fast-twitch fibers which is another source of energy for the muscle cell during exercise. In summary, the type of muscle fibers that are used to maintain posture in the back muscles are primarily slow-twitch fibers or Type I fibers. These fibers are best suited for this function due to their ability to contract and maintain tension for longer periods of time, without fatiguing quickly.
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In the astonishing hypothesis (1994, p. 49) sir francis crick noted, "when one neuron tells another neuron is simply how much it is excited. " using terms from the chapter, compare the neural communication when we are a) tapped gently on the arm, and b) slapped across the face
The neural communication varies greatly from when we are tapped gently on the arm in comparison to when we are slapped across the face. When we slapped that strongly triggers and increases the number of times those neurons fire. But when we tap on the arm that triggers fewer neurons to be fired.
Communication between neurons occurs electrochemically. Neurotransmitter receptors can be found on the dendrites of neighboring neurons. If the impulses from neighboring neurons are strong enough, an action potential will travel the length of the axon to the terminal buttons, releasing neurotransmitters into the synapse in the process.
Many neurotransmitters serve a variety of purposes. Unbalances in a specific neurotransmitter system frequently play a role in psychiatric disorders. As a result, doctors often prescribe psychiatric medications to try to rebalance the neurotransmitters. For a certain neurotransmitter system, drugs can either behave as agonists or antagonists.
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In clonal selection of B cells, which substance is responsible for determining which cells will eventually become cloned?a. antigenb. interferonc. antibodyd. complement
In clonal selection of B cells, antigen is the substance responsible for determining which cells will eventually become cloned. Therefore the correct option is option A.
Clonal selection is a mechanism by which the immune system identifies and destroys pathogens such as bacteria, viruses, and fungi that cause diseases. It occurs when a specific antigen binds to and activates only those T lymphocytes that are specific for it.
This selective activation results in the proliferation of the activated T lymphocytes, resulting in the production of a large population of antigen-specific T lymphocytes. Antigens are foreign molecules that elicit an immune response when they enter the body.
They are typically proteins or carbohydrates that are present on the surface of bacteria, viruses, and fungi. When an antigen enters the body, it is picked up by specialized immune cells called dendritic cells.
In conclusion, the antigen is the substance responsible for determining which cells will eventually become cloned in clonal selection of B cells.
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when red flowered snapdragons are crossed with white flowered snapdragons, all the f1 plants will ave pink flowers. if mendel had used snapgragons instead of pea plants he would have had difficulty in formulating his principle of
When red flowered snapdragons are crossed with white flowered snapdragons, all the F1 plants will have pink flowers. If Mendel had used snapdragons instead of pea plants, he would have had difficulty in formulating his principle of incomplete dominance.
Incomplete dominance is a type of inheritance where one allele for a specific trait is not entirely dominant over the other allele. Incomplete dominance is described as a type of gene interaction where both the dominant and recessive alleles are expressed as a blended phenotype in the F1 generation.
Incomplete dominance was first described by Carl Correns, Erich von Tschermak, and Hugo de Vries. They studied snapdragon flowers, which produced a pink color when the dominant red allele was crossed with the recessive white allele. Because Mendel's pea plants only exhibited complete dominance, he would have had difficulty formulating his principle of incomplete dominance if he had used snapdragons instead of pea plants to study genetic inheritance.
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which of the following occurs when a sessile biofilm (or a part of it) begins to starve or experiences oxygen depletion?
When a sessile biofilm (or a part of it) begins to starve or experiences oxygen depletion, cell death occurs.
A biofilm is a community of microorganisms that stick to each other and cling to surfaces. They produce and live in a self-produced matrix of extracellular polymeric substances (EPS). Biofilms are formed by bacteria, fungi, and algae in natural, industrial, and medical settings. Microorganisms in a biofilm display distinct physiological and metabolic features from free-living cells, and they're more resistant to antimicrobial drugs and environmental stress. They're also more tenacious and tough to eliminate than planktonic organisms that exist independently in the environment. Their resistance is due to a combination of genetic, biochemical, and ecological factors, as well as the structural properties of the biofilm.When a sessile biofilm (or a part of it) begins to starve or experiences oxygen depletion, cell death occurs. The EPS is the biofilm's matrix, which surrounds the microorganisms, might become compromised. The lack of nutrients in the biofilm causes the microorganisms to consume their own EPS. EPS might start to degrade, which allows the loss of integrity of the biofilm. Nutrient deprivation, pH changes, the presence of free radicals, and host defenses, such as the immune system, are all stressors that might cause biofilm cell death. Therefore, we can say that cell death occurs when a sessile biofilm (or a part of it) begins to starve or experiences oxygen depletion.Learn more about biofilm: https://brainly.com/question/13232627
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Which factors contribute MOST to intraspecific competition?
predation and parasitism
mutualistic relationships
a species' rate of reproduction and the carrying capacity of the environment
a species' fundamental niche and abiotic surroundings
population size
A species' rate of reproduction and the carrying capacity of the environment, these factors contribute to intraspecific competition.
Intraspecific competition is when it occurs between members of the same species.
example of male kangaroo fighting for the mates.
The importance of intraspecific competition is basic factor in natural selection and also for the survival of the fittest and this leads to the more fit individual survives and is able to reproduce.
It also leads to the evolution of better adaptations within a species.
But this also leads to competition for limited resources which can leads to a reduction in fitness for both individuals, but the more fit individual survives and is able to reproduce is the sole purpose of intraspecific competition.
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please choose the term used to describe the type of antimicrobial resistance that is of most concern today. multiple choice: A) native B) mutational C)intrinsic D) acquired E) inherent
The term used to describe the type of antimicrobial resistance that is of most concern today is acquired. So the correct option is D.
Antimicrobial resistance (AMR) is a public health problem that results when germs such as bacteria, viruses, fungi, and parasites alter over time and become resistant to medications used to cure them. Because germs that are immune to medicines that once worked for them are difficult to treat, AMR can make it difficult to treat infections in people and animals, resulting in serious infections and even death. Acquired is the most concerning type of antimicrobial resistance. It refers to a situation in which an organism acquires resistance genes from another organism, which can occur through horizontal transfer.
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fat leaves the chylomicron and moves into adipose cells when the chylomicron come into contact witha. ribosomeb. antibodiesc. lipoprotein lipase
When chylomicrons come into contact with lipoprotein lipase (LPL), fat leaves the chylomicron and moves into adipose cells. Therefore, the option that represents the correct answer is C. Lipoprotein lipase.
Lipoprotein lipase (LPL) is an enzyme that catalyzes the hydrolysis of triglycerides in chylomicrons and VLDLs (very-low-density lipoproteins) into glycerol and free fatty acids, which are transported into the adipose tissue for storage, muscle tissue for energy use, and other organs for various functions. LPL is produced by adipocytes, skeletal muscle cells, and the heart.
Therefore, this enzyme is found on the endothelial surface of blood vessels in the tissues where the triglyceride-rich lipoproteins come into contact. the fat leaves the chylomicron when they come into contact with lipoprotein lipase (LPL).
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in rabbits, black fur (B) is dominant over brown fur(b). Consider the punnett square.Both of the parents in the Punnett square are:blackbrownhomozygous dominanthomozygous recessive
In rabbits, black fur (B) is dominant over brown fur (b). The Punnett square is shown below, and both parents are b. homozygous dominant.
A Punnett square is a chart that scientists utilize to predict the likelihood of an offspring inheriting a particular trait. It is a visual representation of Mendelian genetics' fundamental principles. A Punnett square can be used to estimate the chances of an offspring inheriting particular characteristics by organizing the alleles from both parents.
An individual has two copies of the same allele in their DNA sequence, and the alleles are the same. Homozygous dominant alleles are a pair of genes that specify the same characteristics and that are both dominant alleles. As a result, the offspring will inherit black fur in a 100 percent likelihood. The alleles for black fur from both parents are present in the offspring's genome, so the black fur trait will be expressed as a result.
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An elementary reaction is known to be bimolecular. What does this mean? A) Two molecules of products are made B) The order of the reaction is 2 C) Two molecules must collide at the same time D) Both A and B E) Both B and C
An elementary reaction is known to be bimolecular. This means that two molecules must collide at the same time. Thus, option C is the correct answer.
Bimolecular reactions are chemical reactions that occur between two reactant molecules. According to reaction kinetics, bimolecular reaction rate laws have second-order kinetics. The reaction rate is proportional to the product of the concentrations of two reactants, so the concentration of two reactants in the collision is necessary. Thus, the reaction is bimolecular. The general formula of the reaction is A + B -> AB. The rate equation of the bimolecular reaction is rate = k [A] [B] or rate = k [A]^2.The order of a reaction is determined by the order of the slowest elementary step. The order of the reaction is 2 when a bimolecular reaction occurs through an elementary step. Thus, option B is incorrect. An elementary reaction only includes a single step. The species present in the reactants and products of an elementary reaction are known as molecules, ions, or atoms. In an elementary reaction, the number of products that form corresponds exactly to the number of reactants that are lost. Thus, option A is also incorrect. Therefore, the correct option is C) Two molecules must collide at the same time.
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in eukaryotic cells, how do transcription factors act to control gene expression?
