The main product of the fermentation of protein-rich foods is lactic acid, which contributes to food preservation, flavor, and texture, as well as potentially providing health benefits.
The main product of the fermentation of protein-rich foods is lactic acid. This organic compound is produced when microbes metabolize the proteins in these foods. Lactic acid plays an important role in food preservation, improving the shelf life of fermented foods. It also contributes to the flavor and texture of many traditional fermented foods, such as cheese and yogurt. Additionally, lactic acid may be used as a preservative in processed foods. Fermentation of protein-rich foods is an ancient process that has been used for centuries. The bacteria used in fermentation help break down proteins, carbohydrates, and fats. This process produces several beneficial compounds, including lactic acid, which helps preserve the food. The lactic acid produced during fermentation also has the potential to provide health benefits, as it has antimicrobial and antioxidant properties.
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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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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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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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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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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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describe the differences between the arteriole and venules. focus on tissue types. on the image, point out the differences.
Arterioles and venules are two types of blood vessels.
Arterioles are small blood vessels that carry oxygen-rich blood away from the heart to various organs and tissues, while venules are small blood vessels that transport deoxygenated blood back to the heart from different organs and tissues. Arterioles have thicker smooth muscle layers than venules, and they are made up of a layer of endothelial cells, a basement membrane, and some connective tissue.
The muscle layers in the arteriole are composed of smooth muscle cells, which help control blood flow by contracting and relaxing. In the walls of the venules, smooth muscle cells are rare. Instead, they contain collagen fibers and elastic fibers, which aid in the vessel's flexibility. Their walls are thinner, and they have a larger diameter compared to arterioles. Arterioles contain endothelial cells, basement membranes, smooth muscle cells, and some connective tissues, while venules contain endothelial cells, collagen, and elastic fibers.
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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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Which of the following pain sensation(s) is(are) associated with neuropathic pain? (Select all that apply.)
a. Infection
b. Inflammation
c. Obstruction
d. Postamputation
Neuropathic pain sensations are associated with Postamputation, Infection, and inflammation.
Neuropathic pain is the term for pain that is caused by harm to the nervous system, which is responsible for transmitting messages from the brain to the rest of the body. It's unlike nociceptive pain, which is caused by injury to tissues like muscles, joints, and bones. Infection, inflammation, obstruction, and postamputation are all pain sensations that can be associated with neuropathic pain.
In contrast, nociceptive pain is generally caused by tissue damage. Obstruction typically occurs when a nerve is compressed or damaged, leading to a sensation of burning or stabbing pain. Postamputation pain can occur when a nerve is cut during a surgical procedure, leading to an intense and uncomfortable sensation.
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T/F Increased concentrations of carbon dioxide and hydrogen ions and a decreased concentration of oxygen in the interstitial fluid cause local arteriolar constriction.
The given statement is True, increased concentrations of carbon dioxide and hydrogen ions and a decreased concentration of oxygen in the interstitial fluid cause local arteriolar constriction. A local arteriolar constriction is a physiological process that occurs in response to a low level of oxygen or high levels of carbon dioxide or hydrogen ions in the interstitial fluid.
This process causes the arteries and arterioles in the region to contract and limit blood flow to the region. The constriction of the arterioles lowers the amount of blood flow to the area, which can be useful in some situations, such as during inflammation or injury. The constriction helps to reduce the amount of edema that develops in the area by limiting the amount of fluid that can move from the bloodstream into the interstitial fluid. However, when the constrictions are prolonged, it can lead to hypoxia, ischemia, and tissue damage, as there is a lack of oxygen and nutrients to the cells, leading to the onset of acidosis. Therefore, the process of local arteriolar constriction should not be prolonged, and it should not occur in the absence of a low level of oxygen or high levels of carbon dioxide or hydrogen ions in the interstitial fluid.
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Which of the following are advantages of having children in one's twenties?The parents have more physical energy.The mother is likely to have fewer health problems.The parents are less likely to build up expectations for their children.
Advantages of having children in one's twenties are as follows: The parents have more physical energy. The mother is likely to have fewer health problems. The parents are less likely to build up expectations for their children.
Being pregnant and giving birth is a tiring and physically demanding job. In addition, taking care of a child, especially a young one, can be equally exhausting. It is said that having children in your twenties will provide you with more physical energy. When a mother gives birth at an early age, her body is much more capable of bouncing back than it would be at a later age. The mother is also likely to have fewer health problems than an older mother, making the child's early years much easier.
There is also an advantage for parents in that they are less likely to build up expectations for their children. The younger parents don't have to worry about things like paying for their children's education, so they can simply focus on the enjoyment of raising their child.
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The cells of the immune systema) move from one part of the body to another via the body's circulatory systemsb) descend from tissue cells & therefore stay in the tissues where they developed
The cells of the immune system a) move from one part of the body to another via the body's circulatory systems
Cells are the basic functional and structural units of living organisms. Cells are specialized to carry out unique functions. The human immune system is the body's primary line of defense against illness-causing pathogens. The immune system comprises various specialized cells and organs that work together to recognize and eliminate pathogens. B lymphocytes, T lymphocytes, natural killer cells, and macrophages are among the specialized cells involved in the human immune response.
The immune system's specialized cells are made in the bone marrow and thymus gland. These cells move from one body part to another through the body's circulatory system, which includes the bloodstream and lymphatic system. The bloodstream carries oxygen and nutrients to the body's tissues and organs, while the lymphatic system helps to remove toxins and waste products from the body's tissues. The immune system's specialized cells use these systems to move from one part of the body to another, enabling them to identify and respond to invading pathogens.
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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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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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how is the lunar-linked rhythm of fiddler crab courtship similar in mechanism and function to the seasonal timing of plant flowering?
The lunar-linked rhythm of fiddler crab courtship is similar to the seasonal timing of plant flowering in terms of mechanism and function.
The lunar-linked rhythm of fiddler crab courtship is similar in mechanism and function to the seasonal timing of plant flowering in the following ways:
Both are regulated by environmental cues, such as light and temperature.Both involve the synchronization of biological processes with external factors.Both help to increase the likelihood of successful reproduction.Therefore, the lunar-linked rhythm of fiddler crab courtship and the seasonal timing of plant flowering are examples of biological timing mechanisms that are influenced by environmental factors.
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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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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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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 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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What is the covalent bond between the carboxyl group on one amino acid and the amino group on the next, formed by a dehydration reaction?
The covalent bond between the carboxyl group of one amino acid and the amino group of the next is called a peptide bond.
This bond is formed through a dehydration reaction, in which a molecule of water is removed, allowing the carboxyl group (-COOH) of one amino acid to join with the amino group (-NH2) of the next, forming a bond (-CO-NH-) between the two amino acids.
This process repeats, forming a long chain of amino acids known as a polypeptide. Peptide bonds are very strong and contribute to the stability and shape of proteins, which are made up of one or more polypeptide chains. The sequence of amino acids in a polypeptide chain determines the specific properties and functions of the protein.
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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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In a bacterial transcription unit, the role of the ?? is to form a recognition and binding site for RNA polymerase
In a bacterial transcription unit, the role of the promoters is to form a recognition and binding site for RNA polymerase.
In the bacterial transcription unit, promoters serve as an RNA polymerase binding and recognition site. Promoters are particular DNA components that are present before the transcription start site. The RNA polymerase subunit binds to promoters to deliver a catalytically effective RNA polymerase core.
Using a DNA template, RNA molecules are produced by RNA polymerase, a multi-unit enzyme. Prior to translation, which is the process of decoding RNA into proteins, the transcription of genetic information into RNA is the initial phase of gene expression.
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The process of evolutionary changes that result in formation of new species is called: A) temporal evolution. B) microevolution. C) macroevolution.
Option-C: macroevolution.The process of evolutionary changes that result in formation of new species is called macroevolution.
Macroevolution refers to the study of evolutionary changes over long periods of time. It is the process by which new species arise from pre-existing ones. Macroevolution is the study of the large-scale patterns and processes that have resulted in the diversity of life on Earth. Macroevolution, which takes place over millions of years, is different from microevolution, which occurs on a much smaller scale, such as within a population or species.
Microevolution refers to the small-scale changes in the genetics of populations or species over time, whereas macroevolution refers to the large-scale changes in the evolution of life as a whole.Macroevolution is concerned with the processes that create new species, genera, families, and other groups of organisms, whereas microevolution is concerned with the processes that create variation within populations and species.Thus the correct answer is option C.
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what stage does chromosomes align in center of cell
Chromosomes align in the center of a cell during metaphase, which is the second stage of the cell cycle.
During this stage, the spindle apparatus forms, which is composed of microtubules that attach to each chromosome. The microtubules will then pull the chromosomes to the centre of the cell, aligning them in a process known as the Metaphase Plate. This ensures that each daughter cell will have the same number of chromosomes as the parent cell. The alignment of chromosomes in the center of the cell during metaphase is essential for accurate segregation during the later stages of cell division.
In preparation for metaphase, the chromatids (the two identical halves of a chromosome) that were previously duplicated in the preceding stage, prophase, condense into a tightly-packed structure. Microtubules attach to each chromatid and the spindle apparatus begins to form. Once the spindle apparatus is formed, the chromosomes are pulled to the centre of the cell, resulting in the Metaphase Plate.
The alignment of chromosomes in the centre of the cell during metaphase is essential for the accurate segregation of chromosomes during the following stage, anaphase. During anaphase, the centromeres (the point where two chromatids of a chromosome are joined) of each chromosome separate and the two daughter chromosomes are pulled in opposite directions. This ensures that each daughter cell receives the same genetic information from the parent cell.
In summary, during metaphase, the chromosomes align in the centre of the cell as a result of the spindle apparatus. This alignment is necessary to ensure that each daughter cell receives the same genetic information from the parent cell during the subsequent stages of cell division.
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which of the following substances would not be found in lymph? proteins water lymphocytes red blood cells
The substance that would not be found in lymph is red blood cells. Lymph is a fluid that circulates in the lymphatic system's lymph vessels.
Lymph is a transparent, yellowish fluid made up of white blood cells that are transmitted from the bone marrow to the thymus gland. The lymphatic system's primary function is to maintain fluid balance in the body, prevent infection, and aid in the body's immune response.
Red blood cells in Lymph does not contain red blood cells because the cells lack nuclei and have a biconcave shape. They can only move through capillaries in single file because of their shape. Red blood cells would be too large to pass through lymphatic vessels, which have a much smaller diameter than capillaries.
This, in essence, implies that red blood cells cannot pass through the lymphatic system. Lymphocytes are a type of white blood cell that plays an essential role in the body's immune system. T cells, B cells, and natural killer cells are the three main types of lymphocytes. T cells and B cells work together to identify and kill foreign substances and antigens in the body. Natural killer cells aid in the removal of cancer cells and cells infected with viruses.
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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
in eukaryotic cells, how do transcription factors act to control gene expression?
Can you help me please?
who discovered the basic principles of inheritance using traits of pea plants?
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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How do scientists use comparative embryology for evidence of evolution? (Use the photo provided to explain. SPAM ANSWERS = INSTANT REPORT.)
