The answer is one week
Why is color blindness more common in males
Color blindness is more common in males due to the inheritance of the recessive gene on the X chromosome, and males have only one X chromosome.
Color blindness is more prevalent in males due to the genetic basis of the condition. The genes responsible for color vision are located on the X chromosome. Since males have one X and one Y chromosome (XY), while females have two X chromosomes (XX), a male inherits his X chromosome from his mother and the Y chromosome from his father.
If a male inherits a recessive color blindness gene on the X chromosome from his mother, he lacks the corresponding gene on the Y chromosome to compensate, leading to the manifestation of color blindness. In contrast, females would need to inherit two recessive genes (one from each parent) to express color blindness, making it less common in females. The genetic inheritance pattern on the sex chromosomes contributes to the higher incidence of color blindness in males.
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Which of these terms best describes an area of skin that is innervated by a particular spinal nerve?
Answer: Dermatomes are similar; however, a dermatome only specifies the area served by a spinal nerve. In some cases, the dermatome is less specific (when a spinal nerve is the source for more than one cutaneous nerve), and in other cases it is more specific (when a cutaneous nerve is derived from multiple spinal nerves.)
Explanation:
The _______ model hypothesizes that genetic vulnerability interacts with environmental factors to stimulate asthmatic reactions.
a. hardiness
b. hierarchy of needs
c. diathesis-stress
d. allergy
The correct answer is C
The. diathesis-stress model hypothesizes that genetic vulnerability interacts with environmental factors to stimulate asthmatic reactions.
What is diathesis-stress in psychology?The stress model assumes that mental illness results from the interaction between inherent vulnerabilities and environmental stressors. In Psychopathology
, such interactions between psychopathology and environmental factors are associated with stressful conditions in which mental and physical disorders, from genetic or biological predisposition, play a facilitating or facilitating role. It is proved by the theory that it develops into the disease (diabetes). Stress is Also known as the stress hypothesis (or paradigm or theory).
On the other hand, depending on the living environment, it may represent both predisposition and stress. For example, a child with a parent who has a mental illness may be genetically vulnerable to the illness and may be under stress due to the parent's condition.
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What is meant the description "antiparallel" regarding the strands that make up DNA?
A) The twisting nature DNA creates nonparallel strands.
B) The 5' to 3' direction of the other strand runs counter to the 5' to 3' direction of the other strand.
C) Base pairings create unequal spacing between the two DNA strands.
D) One strand is positively charged and the other is negatively charged.
E) One strand contains only purines and the other contains only .
Answer:
B) The 5' to 3' direction of the other strand runs counter to the 5' to 3' direction of the other strand.
Explanation:
Two strands in DNA double helix are in opposite directions alongside each other and that is called antiparallel orientation.
The 5' end of nucleic acid refers to phosphoryl end (phosphate group) while 3' end refers to hydroxyl (OH) group.
The property of anti-parallelism is important for the process of DNA replication.
In terms of DNA, 'antiparallel' describes the opposite orientations of the two strands in a DNA double helix, with one strand running 5' to 3' and the other 3' to 5', allowing proper base pairing and function of DNA-synthesizing enzymes.
Explanation:The term antiparallel in the context of DNA refers to the orientation of the two strands that make up the DNA double helix. They are parallel but run in opposite directions. Specifically, one strand is oriented 5' to 3', while the complementary strand is oriented 3' to 5'. This arrangement is crucial for the DNA's functions, such as replication and repair, and it allows the enzymes that synthesize DNA, like DNA polymerase, to operate properly. Because the DNA strands are antiparallel, complementary base pairs can form the correct hydrogen bonds, with adenine (A) always pairing with thymine (T) and guanine (G) always pairing with cytosine (C).
What climate condition occurs during El Niño?
dry heat throughout North America
warm water moving toward the coast of South America
heavy rain moving toward the coast of South America
flooding throughout North America
Answer:
Warm water moving toward the coast of South America
The correct answer is B. Warm water moving toward the coast of South America
Explanation:
El Niño is a phenomenon in the climate that mainly occurs as warm ocean water develops in the Pacific Ocean especially in the Equator Pacific including the coast of South America. This causes changes in pressure due to the temperature in the ocean water as well as changes in the rain. Additionally, this phenomenon is the opposite of the one of La Niña in which the temperature in the ocean is colder rather than warmer. Also, these types of climate changes are part of cycles that last around a year but can take place over multiple years. Therefore, the climate condition that occurs during this phenomenon is warm water moving toward the coast of South America.
Which value is a good estimate of the railroad’s average elevation?
450
480
500
550
Answer:
450
Explanation:
Hence, 450 is a good estimate of the railroad’s average elevation.
Railroad’s average elevation
A railroad grade pocket watch exists absolutely a watch that was approved by a particular railroad organization for utilize by conductors on their rail.
Elevation stands distance above sea level. Elevations exist usually measured in meters or feet. They can be displayed on maps by contour lines, which connect points with the same elevation; by bands of color; or by numbers presenting the exact elevations of particular points on the Earth's surface.
Hence, 450 is a good estimate of the railroad’s average elevation.
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What are the potential consequences of increasing crop growth to feed a growing human population?
Habitat loss for animals, Animal Extinction,destruction of top soil, chemical polluting , loss of biodiversity
Does natural selection affect populations or individuals?
Answer:
Humans can't negatively impact ecosystems, because species will just evolve what they need to survive. Natural selection acts for the good of the species. ... Natural selection is about survival of the very fittest individuals in a population. Natural selection produces organisms perfectly suited to their environments.
Explanation:
During interphase a cell grows duplicates organelles and
Answer:
it copies the DNA of both parent cells
Explanation:
Interphase is a cell cycle stage where the cell grows, duplicates its organelles, synthesizes DNA, and prepares for mitosis, which is followed by cytokinesis to form two daughter cells.
Explanation:During interphase, a cell undergoes growth, duplicates its organelles, and prepares for cell division. This phase is characterized by three distinct stages: the G1 phase (also known as the first growth phase), the S phase (DNA synthesis), and the G2 phase. In the G1 phase, the cell grows in size, performs normal metabolic processes, and starts replicating organelles. Entry into the S phase marks the beginning of DNA replication to ensure each new cell has an identical set of genetic material. Finally, in the G2 phase, the cell continues to grow, makes additional proteins and organelles, and prepares for mitosis. The mitotic phase follows interphase, which includes the processes of mitosis and cytokinesis, resulting in the formation of two genetically identical daughter cells.
Which level of organization is characterized by a group of cells that work together to perform a common function
Hey there! :D
Organization in organisms is like this:
cells => tissues => organs => organ systems => organisms
Since we are talking about a group of cells, this would be a tissue. Don't let the word 'function' confuse you. Tissues do functions as well as an entire organ or organ system.
It is helpful to use the flow chart when asked questions like these, so make sure to memorize it! It will be helpful in any level of science.
I hope this helps!
~kaikers
A new object, Object Y, was discovered outside our solar system. Object Y is small and rocky, is not a satellite of any other object, and it does not have enough gravity to clear away smaller objects near its orbit. The characteristics of Object Y most closely resemble those of other (2 points)
comets.
dwarf planets.
moons.
meteors.
Answer:
The correct answer is comets.
Explanation:
Comet is an icy, small, and rocky bodies found in space, which discharge gas or dust. They are also called dirty snowballs. It is not considered as the satellite of other objects. It does not exhibit adequate gravity to clear away smaller objects close to its orbit. When it passes close to the Sun, it sheds extra of its ice, and its surface may get surrounded with darkish dirt and would seem more like an asteroid.
Final answer:
The characteristics of Object Y—being small and rocky, as well as its inability to clear its orbit—most closely resemble those of dwarf planets within our solar system.
Explanation:
The characteristics of Object Y most closely resemble those of other dwarf planets. Like Object Y, dwarf planets are small and rocky objects that do not have enough gravity to clear away smaller objects near their orbits. Although comets, asteroids, and meteors are also part of our solar system's collection of smaller objects, they each have distinct features that do not match the description of Object Y as closely as dwarf planets do. Comets are mostly icy and have elliptical orbits that can bring them close to the Sun, producing visible tails and comas. Asteroids are rocky like Object Y, but the term typically refers to those found within the asteroid belt between Mars and Jupiter, and they do not have the criterion related to clearing their orbits. Meteors are much smaller, often vaporizing in Earth's atmosphere, and moons are objects that orbit planets, which is not the case for Object Y.
The waste material that comes from discarded computer technology items peripherals and electronic information devices such as computers printers software devices and monitors is known as
Answer:
Computer recycling, electronic recycling or e-waste recycling is the disassembly and separation of components and raw materials of waste electronics
Answer:
E -waste
Explanation:
All the waste that is generated from electronic waste is called E-waste. All devices related to computer technology and software are electronic products thus waste generating from such products will fall under the category of electronic waste.
These e –waste cannot be disposed of like other landfill waste as they contain microchips, copper wire, etc, thus need special attention while disposal.
The activation of receptor tyrosine kinases is characterized by _____.
Answer:
dimerization and phosphorylation
Explanation:
Protein kinase receptors are simply saying receptors with associated kinases (usually tyrosine kinases).
Protein kinases are enzymes that have the ability to modulate other enzymes (or some other proteins) by adding the phosphate group. This is known as phosphorilation process. As a result of structural change, protein can change its activity (phosphorilation usually increase the activity).
Such receptors are involved in a many processes within an organism that are important for the cellular growth, differentiation, metabolism .
The activation of receptor tyrosine kinases involves dimerization, autophosphorylation of tyrosine residues, and a downstream cellular response. Afterwards, a phosphatase enzyme deactivates the signal to terminate the process.
Explanation:The activation of receptor tyrosine kinases is characterized by the binding of a signaling molecule to the extracellular domain, causing the receptor to dimerize. This dimerization enables tyrosine residues on the intracellular domain of the receptor to be autophosphorylated, initiating a downstream cellular response. Once the signal is completed, a phosphatase enzyme deactivates the signal by removing the phosphates from the phosphotyrosine residues. This is a critical process in various cellular activities like metabolism, protein expression, and cell division.
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baby sea turtles hatch underground automatically did upward towards the sky and skirts what is the waves this is an example of _______behavior
Answer:
maybe D
Explanation:
A bird species known as the cattle egret is often found near farms in wet areas. The bird waits, sometimes even perched on a cow's back, until the cow kicks up a frog or fish while it walks. Then, the bird strikes and eats the exposed prey. This is an example of what kind of feeding relationship? A. Parasitic B. Mutualistic C. Herbivorous D. Detritus
Answer:
mutualistic
Explanation:
the egeret is dependent on the cow to kick up the frogs or fish
Answer:
B. Mutualistic
Explanation:
Cattle egret and grazing cattle exhibit close association. Egrets always forage close to the grazing cattle since the cattle stir up the vegetation while moving. This flushes out the insects from the vegetation and egrets feed on them. Without a grazing cattle, egrets find it difficult to locate and catch the insects. Since egrets are benefited from the association, it is mutualism.
The activation of receptor tyrosine kinases is characterized by A) channel protein shape change. B) dimerization and phosphorylation. C) a phosphorylation cascade. D) dimerization and IP3 binding. E) GTP hydrolysis
Answer:
B) dimerization and phosphorylation
Explanation:
Protein kinase receptors are simply saying receptors with associated kinases (usually tyrosine kinases).
Protein kinases are enzymes that have the ability to modulate other enzymes (or some other proteins) by adding the phosphate group. This is known as phosphorilation process. As a result of structural change, protein can change its activity (phosphorilation usually increase the activity).
Such receptors are involved in a many processes within an organism that are important for the cellular growth, differentiation, metabolism.
The activation of receptor tyrosine kinases involves dimerization, where two similar receptors bind together, followed by phosphorylation, which activates a downstream cellular response. A phosphatase enzyme eventually terminates this signal.
Explanation:The activation of receptor tyrosine kinases is characterized predominantly by dimerization and phosphorylation. Initially, a signaling molecule binds to the extracellular domain of the receptor which leads to its dimerization i.e., the joining of two receptor molecules. This allows their intracellular domains to come nearer and activate each other.
Following dimerization, the receptors undergo phosphorylation. Each receptor, within the dimer, catalyzes the addition of a phosphate group to tyrosine residues on the intracellular domain of the other receptor in the dimer. This process is referred to as 'autophosphorylation'. Autophosphorylation triggers a downstream cellular response which could involve various processes such as modifying cell metabolism, protein expression, or cell division. Lastly, a phosphatase enzyme terminates the signal by removing the phosphate groups from the phosphotyrosine residues.
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Pick the correct match.
cellulose:
phospholipids and protein:
gives strength to cell:
selective membrane:
Answer:
Answer:
Cellulose : cell wall
Phospholipids and protein : cell wall
Gives strength to cell : cell wall
Selective membrane : Plasma membrane
Explanation:
The correct matches are Cellulose: cell wall, Phospholipids and protein: plasma membrane, Gives strength to cell: cell wall, Selective membrane: plasma membrane. Cellulose contributes to the cell wall's strength, while phospholipids and proteins are crucial for the plasma membrane's function.
To answer the student's question:
Cellulose is associated with the cell wall.Phospholipids and proteins are key components of the plasma membrane.The cell wall gives strength to the cell.The plasma membrane acts as a selective membrane.Therefore, the correct matches are:
Cellulose: cell wall or plasma membrane — answer a or dPhospholipids and protein: plasma membrane or cell wall — answer b or cGives strength to cell: cell wall or plasma membrane — answer a or dSelective membrane: plasma membrane or cell wall — answer b or cFor clarification, cellulose is a major component of the cell wall in plants, providing rigidity and support. Phospholipids form the bilayer of the plasma membrane and, together with proteins, are essential for its function and selective permeability.
The correct question is:
Pick the correct match.
1. Cellulose:
2. Phospholipids and protein:
3. Gives strength to cell:
4. Selective membrane:
a. cell wall or plasma membrane
b. plasma membrane or cell wall
c. plasma membrane or cell wall
d. cell wall or plasma membrane
ภาพเซลล์ที่นักเรียนได้ศึกษานั้น เป็นเซลล์ที่มีขนาดและรูปร่างต่างกัน บางเซลล์มีหาง บางเซลล์มีคลอโรฟิลล์ และบางเซลล์มีขนรอบตัว ลักษณะต่างๆเหล่านี้มีประโยชน์อย่างไร
These characteristics are useful because they help the cell to carry out its normal activities
Cells have different shapes and features depending on their functions. Tailed cells move with their tails as seen in sperm cells. Cells with chlorophyll, like plant cells, convert light energy to chemical energy for photosynthesis. Some cells have 'hairs' or cilia, helping in movement or in moving substances past the cell.
Explanation:The different characteristics of cells have specific purposes. Cells with tails, like sperm cells, use their tails for movement. They swim to reach the egg for fertilization. On the other hand, cells with chlorophyll, found primarily in plants, use this pigment for photosynthesis, the process of converting light energy into chemical energy. Cellular 'hairs' or cilia, help in movement or in moving substances past the cell.
These diverse forms and features of the cells make them specially adapted to their specific functions in the organism. It's a perfect example of how structure complements function in the realm of biology.
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Approximately how many piglets a sow have in a litter
Answer:
10
Explanation:
The pigs tend to have very large litters. A sow that has been fed and kept well usually has around 10 piglets per litter. While 10 piglets are somewhat the normal number, there are many cases when a sow has produced 15 or 20 piglets per litter. Not just that the liters are very large, but a sow can produce not one, but two litters per year, making it an animal that has extremely quick reproductive cycle for its size. The gestation period is also not long for the size of these animals, and it usually lasts between 112 and 120 days. When the piglets are born they are very small and helpless at first, but they manage to grow and mature very quickly, reaching sexual maturity at only between 3 and 12 months of age, thus becoming adults in a very short time span.
The characteristic of development that says that change does not always occur in a straight line is:
Answer:
multidirectional.
Tadpoles must undergo a major metamorphosis to become frogs. This change includes reabsorption of the tail, growth of limbs, calcification of the skeleton, increase in rhodopsin in the eye, development of lungs, change in hemoglobin structure, and reformation of the gut from the long gut of an herbivore to the short gut of a carnivore. Amazingly, all of these changes are induced by thyroxine. What is the most likely explanation for such a wide array of effects of thyroxine?
Answer:
There are many receptors for thyroxine on different target cells (tissues), so its effect can be huge
Explanation:
Target cell for a certain hormone is a cell that have hormone receptor specific for that hormone. There are two main types of receptors on target cell:
cell membrane receptors (also called trans membrane receptors)-usually for peptide hormones, such as insulinintracellular receptors (also called nuclear receptors)-usually for steroid hormones, such as testosterone.Hormone binding to the receptor leads to the signal cascade within the cell, which results in cell response.
Receptors for thyroid hormones are nuclear receptors.
Which of the following does not influence the time necessary for a nerve impulse to be transmitted?
a. length of the axon
b. presence or absence of a myelin sheath
c. diameter of the axon
d. presence or absence of nodes
e. whether or not the impulse begins in the CNS
Answer:
e. whether or not the impulse begins in the CNS
Explanation:
Nerve impulse is action potential movement through the axon. Nerve impulse propagation has its velocity (speed at which nerve impulse travels down the axon) which depends on many factors. For example, myelination increases the conduction velocity. Also, the larger the diameter of an axon, the higher the velocity is. Nodes of Ranvier present on the axons, and myelin sheath between the nodes act as a good electrical insulator which also increases the velocity.
Whether or not the im_pulse begins in the C_NS does not influence the time necessary for a nerve impulse to be transmitted.
What is the C_NS?The Central Nervous system (C_NS) refers to the organism system used by the body to receive and transmit signals from the environment.
The central nervous system is composed of cells called neurons, which contain prolongations called axons.During a nervous stimulus, the axons serve to communicate different nerve cells.In conclusion, whether or not the impulse begins in the C_NS does not influence the time necessary for a nerve impulse to be transmitted.
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At the doctor’s office, the doctor drains the abscess and takes a sample for culturing. She also prescribes some broad-spectrum antibiotics to treat the obvious infection. A couple days later, the doctor tells Sam that his wound contained a number of bacteria including Pasteurella multocida. When the dog bit Sam’s arm P. multocida entered the wound and started to establish an infection. In order to do so, the bacteria have to grow, which requires energy. One of the most common energy sources used by bacteria is glucose. Why is glucose such a good source of energy for bacteria?
Because it contains sugars
Final answer:
Glucose is an ideal energy source for bacteria because it is a monosaccharide that can be easily and efficiently metabolized through glycolysis to release energy needed for bacterial growth and function.
Explanation:
Glucose is such a good source of energy for bacteria like Pasteurella multocida because it is a simple sugar that can be easily metabolized during the process of glycolysis to release energy in the form of ATP (adenosine triphosphate). Bacteria use this energy to perform essential functions like reproduction, movement, and to synthesize necessary compounds. Glycolysis is an efficient pathway for energy extraction, and because glucose is a monosaccharide, it requires relatively little energy to break down compared to more complex carbohydrates. This makes it an ideal energy source for bacteria to grow and establish infections like the one experienced by Sam.
HELP!!!!! What happens when an antibody binds an antigen?
A. It causes pathogens to stick together.
B. It increases body temperature.
C. It produces cytotoxic T cells.
D. It starts the inflammatory response.
Probably C I doubt it’s D
Answer:
A. It causes pathogens to stick together.
Explanation:
Antigens are the antibody generating substances present on the surface of the pathogen such as bacteria, viruses and fungi. When an antibody binds to an antigen (proteins on the surface of pathogens), it makes the pathogens to stick together. This limit the movement of the pathogens around the body and this allows phagocytes to engulf and then destroy them easily.
A worm would stand a poor chance of being fossilized because ________.
Answer:
Explanation:
because it has no bones
A worm has a low likelihood of fossilization due to its soft body structure and its living habitat which doesn't favor the fossilization process.
Explanation:A worm would stand a poor chance of being fossilized primarily for biological and environmental reasons. Worms, like many other soft-bodied creatures, are less likely to become fossilized because they lack hard parts such as bones, shells, or teeth which are most typically preserved in the fossil record. In addition, worms live in environments which typically do not lend themselves well to the fossilization process.
For fossilization to occur, an organism's remains usually need to be covered by sediment or other material soon after death to prevent decay and scattering by scavengers. A worm's habitat in the soil doesn't often provide these conditions, decreasing its chances of fossilization.
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When ATP is broken down in cells, __________ and __________ are the products.
A. adenosine diphosphate; a phosphate group
B. adenosine monophosphate; three phosphate groups
C. adenosine triphosphate; a phosphate group
D. adenosine diphosphate; three phosphate groups
Final answer:
When ATP is broken down, it produces adenosine diphosphate (ADP) and an inorganic phosphate group (Pi). This process releases energy due to the lower free energy of the products compared to the reactants.
Explanation:
When ATP is broken down in cells, the products are adenosine diphosphate (ADP) and an inorganic phosphate group (Pi). This process is known as hydrolysis, which is the reaction involving the cleavage of bonds by the addition of water. ATP, consisting of an adenine, a ribose, and three phosphate groups, releases energy when the bond between the second and third phosphate groups is broken. This energy release occurs because the products, ADP and Pi, have considerably lower free energy than the reactants, ATP and a water molecule. Hence, the correct answer to the question is:
A. adenosine diphosphate; a phosphate group
When there is not enough oxygen, what is glucose converted to in animal cells?
Answer:
In anaerobic respiration, which occurs during fermentation, less energy is extracted — only two ATP molecules per glucose molecule — because the products of the process, such as ethanol or lactic acid, contain more energy than does carbon dioxide, the product of aerobic respiration
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Final answer:
In the absence of adequate oxygen, glucose is converted to lactate in animal cells through lactic acid fermentation to continue ATP production.
Explanation:
When there is not enough oxygen, glucose is converted to lactate in animal cells through a process known as lactic acid fermentation. This process occurs during anaerobic conditions, where the pyruvate produced by glycolysis is reduced to lactate rather than being transported into the mitochondria for further oxidation. The conversion of pyruvate to lactate also regenerates NAD+, which is necessary for glycolysis to continue producing ATP when oxygen is scarce. This is particularly important in cells like red blood cells that lack mitochondria or under strenuous conditions where the oxygen supply is limited.
How does carbon enter the biotic part of the ecosystem
Answer:
Photosynthesis
Explanation:
Photosynthesis can be defined as the process in which the plant and other organism convert light energy into chemical energy which can further be used to make organic compounds. Similarly, it is a process that removes carbon dioxide from the atmosphere and then uses it to make organic compounds.
Answer:
Photosynthesis
Explanation:
When plants die, their carbon compounds are converted into carbon dioxide by the action of saprophytic bacteria and fungi. The carbon dioxide is released back to the atmosphere. If dead bodies of plants are buried in highly acidic or anaerobic conditions, they cannot be acted upon by saprophytes. Instead they are partially decomposed by anaerobic bacteria and accumulate forming peat. Heat and pressure build up in the peat converting it to coal and natural gas that can be combusted to release carbon.
Which group of macromolecules includes enzymes?
A.) lipids
B.) carbohydrates
C.)nucleic acids
D.)proteins
Answer: D. Proteins
Background Info: (from Wikipedia)
A biomolecule or biological molecule is a loosely used term for molecules and ions that are present in organisms, essential to some typically biological process such as cell division, morphogenesis, or development.[1] Biomolecules include large macromolecules (or polyanions) such as proteins, carbohydrates, lipids, and nucleic acids, as well as small molecules such as primary metabolites, secondary metabolites, and natural products. A more general name for this class of material is biological materials. Biomolecules are usually endogenous but may also be exogenous. For example, pharmaceutical drugs may be natural products or semisynthetic (biopharmaceuticals) or they may be totally synthetic.
Enzymes, which are catalysts for biochemical reactions, fall into the protein group of macromolecules. They are comprised of amino acid chains.
Explanation:The group of macromolecules that includes enzymes is proteins. Enzymes are specific types of proteins that act as catalysts in various biological functions.
They speed up the rate of chemical reactions within cells, making them crucial for maintaining life. As proteins, enzymes are composed of amino acid chains.
The other options, lipids, carbohydrates, and nucleic acids, are different types of macromolecules that serve various functions in cells but do not include enzymes.
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A condition in which one gene pair masks the expression of a nonallelic gene pair is called ________.
Answer:
The condition is called EPISTASIS.
Explanation:
Epistasis is said to occur when two or more distinct genes contribute non-additively to the same phenotype. This occurs because one of the genes involve dominate or modify the other gene. There are various examples of genetic epistasis in nature. For instance, in a particular dog specie (Labrador) two genes control the color of the specie giving rise to three different coat colours in the dogs.
Epistasis is a condition where the effect of one gene pair suppresses or masks the expression of another nonallelic gene pair. This is different from dominance which is a relationship between two alleles of the same gene. Epistasis can be showcased in an example where the albinism gene in mammals masks the gene for black and brown color.
Explanation:The condition in which one gene pair hides or masks the expression of a nonallelic gene pair is called Epistasis. This is an important concept in genetics, and is often contrasted with dominance, another gene interaction. While dominance is a relationship between two versions (alleles) of the same gene, epistasis occurs when the effects of one gene's alleles hide the effects of a different gene's alleles. For example, a gene for albinism could be epistatic to the gene that codes for the black and brown color in mammals. Even if the gene for color codes for brown, if the first gene codes for albinism, the mammal will be albino.
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