Outcome of RNA editing is that the sequence of the edited mRNA that is different from the sequence of the gene from which it was transcribed.
RNA editing is carried out by enzymes called RNA editing enzymes. These enzymes recognize specific RNA sequences and catalyze the chemical modifications required for editing. RNA editing is a complex process, and its regulation is not fully understood.
The main function of RNA editing is to create genetic diversity by generating multiple isoforms of proteins from a single gene. RNA editing can also repair mutations in RNA transcripts, and it has been shown to play a role in the regulation of gene expression. Another type of RNA editing is called insertion/deletion editing, in which one or more nucleotides are added or removed from the RNA sequence.
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How are the facial expressions of fear and surprise similar?
Answer:
Fear and surprise are similar because they both are shown in the same key features.
Explanation:
Tthese key features are eyebrows, eyes and mouth. However in surprise, the eyebrows are raised but show more curve than seen in fear. The upper eyelids and jaws are also more relaxed when expressing surprise.
The sickle cell trait is caused by one amino acid, which is called glutamic acid, being changed into a different amino acid, valine. There are no other differences between the normal protein (called hemoglobin) and the protein that causes the
sickle cell trait. What kind of mutation caused this change? Explain your answer
a certain plant species has small, thin seeds, and can grow and produce seeds in either wet years or dry years. imagine that this plant species became invasive in the galapagos and outcompeted most of the native plants. how would you expect this change to affect the evolution of beak size in the medium ground finch population?
The change in plant species would not have a significant impact on the evolution of beak size in the medium-ground finch population.
The introduction of an invasive plant species that can grow and produce seeds in both wet and dry years could potentially alter the beak size of medium-ground finches in the Galapagos.
Beak size in finches is an adaptation to the type of food available in their environment. In the case of the medium ground finch, they have beaks adapted to cracking open hard seeds.
If the invasive plant species produces small, thin seeds, this could result in a change in the selective pressures on the finch population. With a new seed source, there may be less pressure on the finches to have larger, stronger beaks to crack open harder seeds.
Over time, this could result in a shift in the average beak size of the medium ground finch population towards smaller, thinner beaks.
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vanadate is an inhibitor of phosphatases in eukaryotic cells. what would happen to this signaling pathway in the presence of vanadate?
Answer:
By controlling the phosphorylation state of proteins, phosphophatases contribute significantly to cellular signalling networks. According to conventional wisdom, phosphatases are promiscuous because they can interact with dozens to hundreds of different substrates.
Explanation:
In plants, protein phosphatases (PPs) regulate a large number of signalling processes, and their inhibition impairs numerous cellular functions and essentially causes death.
give two examples of organisms that are preferred to as decomposers.
Answer:
Earthworms, Millipedes
Explanation:
what type of muscle fibers will be stimulated during activities such as distance swimming and distance running?
Answer:
Activities such as distance swimming and distance running are aerobic endurance activities that require the use of slow-twitch (type I) muscle fibers. These fibers are characterized by their high resistance to fatigue and their ability to sustain contractions for long periods of time. They are also efficient in using oxygen to produce energy for muscle contractions, which is essential for endurance activities. Slow-twitch muscle fibers are rich in mitochondria, which are responsible for generating energy through aerobic metabolism. These fibers are also used in activities such as hiking, cycling, and long-distance skiing.
Explanation:
The order Primate is subdivided into two categories (Strepsirhini and Haplorhini) that are named after the presence or lack of…Group of answer choicesa vestigial clawa rhinariuma third premolarprehensile tailsischial callosities
The order Primate is subdivided into two categories (Strepsirhini and Haplorhini) that are named after the presence or lack of a rhinarium (option 2).
The order Primates is divided into two suborders based on the presence or absence of certain anatomical features. Strepsirhines, or prosimians, are characterized by their wet nose, also known as the rhinarium, and their long, pointed snouts. They also have a specialized tooth called the toothcomb, which is used for grooming. In addition, many strepsirhines have a grooming claw on their second toe, which is used for personal hygiene. Haplorhines, or simians, lack a rhinarium and have dry noses.
They also have a simpler dental formula and lack the specialized toothcomb and grooming claw. Instead, they have opposable thumbs and, in some species, prehensile tails or ischial callosities (thickened skin on the buttocks for sitting). These anatomical differences between the two suborders reflect their evolutionary history and adaptations to different ecological niches.
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The order Primate is subdivided into two categories (Strepsirhini and Haplorhini) that are named after the presence or lack of rhinarium.
The order Primate is indeed subdivided into two categories: Strepsirhini and Haplorhini. These categories are named based on the presence or lack of a rhinarium.
Strepsirhini primates have a rhinarium, which is a moist, hairless, and glandular area around their nose, typically found in lemurs, lorises, and galagos. This adaptation aids them in olfactory communication and enhances their sense of smell.
On the other hand, Haplorhini primates lack a rhinarium. This group includes tarsiers, monkeys, and apes, which have a more developed reliance on vision rather than olfaction. The dry, hairy surface around their noses is one of the distinguishing characteristics of Haplorhini primates.
So, the correct answer is the presence or lack of a rhinarium.
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Arrange the steps in which farmers can use electricity produce by micro hydropower systems.
Answer:
Water from a river is diverted.A channel delivers the water to a turbine through a channel.Moving water turns the turbine.Electricity is produced.The generated electricity is stored in batteries.Run-of-the-river systems are set up.Farmers can use the electricity produced by the micro hydropower systems for their needs.
Farmers can use electricity produced by micro hydropower systems by following several steps, including identifying a water source, installing a diversion system, setting up a turbine and generator, installing transmission lines, and performing regular maintenance and monitoring.
Explanation:Determine the water source: Farmers need to identify a suitable water source, such as a river or stream, to harness its energy for micro hydropower generation.Install the diversion system: A diversion system, including a dam or weir, redirects the water flow to the micro hydropower system.Set up the turbine: The micro hydropower system consists of a turbine that converts the kinetic energy of the flowing water into mechanical energy.Connect the generator: The mechanical energy drives the generator, which then converts it into electrical energy.Install transmission lines: The generated electricity is transmitted through transmission lines to the required areas for use by the farmers.Maintain and monitor: Regular maintenance and monitoring of the micro hydropower system ensure its efficient operation and maximize electricity production.Learn more about Micro Hydropower here:https://brainly.com/question/33219593
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a pulmonary artery/vein, the thoracic aorta or superior vena cava is called?
The thoracic aorta is called an artery, while the pulmonary artery/vein and superior vena cava are both called veins.
The circulatory system consists of arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart, while veins bring deoxygenated blood back to the heart.
The thoracic aorta is the main artery that carries oxygenated blood from the heart to the rest of the body.
On the other hand, the pulmonary artery carries deoxygenated blood from the heart to the lungs, while the pulmonary vein carries oxygenated blood from the lungs to the heart.
Finally, the superior vena cava is a large vein that carries deoxygenated blood from the upper body to the heart. Understanding the functions of these blood vessels is essential to comprehend how blood flows throughout the body.
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What abiotic and biotic factors affect the species composition of a hard-bottom subtidal community?
Wh dal
Answer:
Biotic factors include other species living in that region
Abiotic factors include the composition of surroundings i.e. flora & fauna relative to that organism or we can say that community
Explanation:
The division between the upper and lower respiratory system is around the nasopharynx. True/False.
The division between the upper and lower respiratory system is around the nasopharynx. This statement is true.
Where is the nasopharynx located?
The nasopharynx is located in the upper respiratory system, which includes the nasal cavity, larynx, and other structures. The lower respiratory system includes the trachea, bronchi, and lungs, and begins below the larynx. Lymph nodes are present throughout the respiratory system to help filter out foreign particles and protect against infection.
The division between the upper and lower respiratory system is indeed around the nasopharynx. The upper respiratory system includes structures such as the nasal cavity, nasopharynx, and larynx, while the lower respiratory system starts from the trachea and continues into the lungs. Lymph nodes are part of the immune system and can be found throughout the body, including near the respiratory system, to help filter and identify harmful pathogens.
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What are the 6 major roles in which a muscle can contract during a joint action? mover, antagonist, fixator, neutralizer, support, synergist.
When a muscle contracts during a joint action, it can play one of six major roles: mover, antagonist, fixator, neutralizer, support, synergist.
1. Mover: This is the muscle that directly produces the movement at the joint. It contracts concentrically (shortens) to move the joint through its range of motion.
2. Antagonist: This is the muscle that opposes the movement produced by the mover. It contracts eccentrically (lengthens) to control the movement and prevent the joint from moving too quickly or too far.
3. Fixator: This is the muscle that stabilizes the joint by holding it in place while other muscles produce movement. It contracts isometrically (without changing length) to maintain joint stability.
4. Neutralizer: This is the muscle that prevents unwanted movement at a joint caused by the actions of other muscles. It contracts isometrically to counteract the force produced by another muscle.
5. Support: This is the muscle that provides support and protection to the joint, particularly when weight is applied to it. It contracts isometrically to hold the joint in a stable position.
6. Synergist: This is the muscle that assists the mover in producing the movement at the joint. It contracts concentrically to produce additional force and help the mover overcome any resistance.
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if a tag is engineered on an expressed protein, which of the following is likely: group of answer choices the tag may bind noncovalently to a matrix and eluted with excess tag the tag may bind covalently to the matrix and eluted with excess tag the tag such as histidine r side chain imidazole can be eluted with excess glutathione the tag such as histidine r side chain imidazole can be eluted with excess matrix
The tag may elute with excess tag 3 by binding noncovalently to a matrix. With excessive glutathione 4, the tag, such as Histidine R side chain imidazole, can be eluted.
The majority of people get their histidine from food. It is utilized in blood cell production, tissue repair, and growth. It safeguards nerve cells. The body makes histamine with it.
Iron deficiency and diminished hemoglobin, which is the protein that conveys oxygen in red platelets. Anxiety and depression symptoms, joint pain (some research indicates that many people with rheumatoid arthritis have low levels), and joint pain. Brain fog and fatigue.
The breakdown of skeletal muscle or an excessive protein intake could be the cause of high histidine levels. If 3-Methylhistidine is likewise high, muscle protein breakdown is shown. - Histidine discharge is additionally high with histidine organization, histidinemia, and in diabetic nephropathy.
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The antibiotic streptomycin inhibits bacterial growth by binding to a protein in the 305 subunit of the ribosome. Based on this information, streptomycin inhibits... DNA synthesis transcription in prokaryotes translation in prokaryotes translation in eukaryotes
By interacting with a protein in the 305 subunit of the ribosome, the antibiotic streptomycin prevents the development of bacteria. This suggests that streptomycin prevents translation in prokaryotes. Option 3 is Correct.
Streptomycin was binds to the 30S component of the bacterial ribosome, just as other antimicrobial agents [1], causing early mistranslation before completely inhibiting translation over time. Numerous non-aminoglycoside antibiotics, such chloramphenicol, also completely stop translation from occurring.
A aminoglycoside is streptomycin. It functions by preventing the production of proteins by 30S ribosomal subunits, which causes bacterial death. The ribosome chooses aminoacyl-tRNAs for creating proteins that have anticodons that match the mRNA codon found in the small ribosomal subunit's A-site. By attaching near to the location, the aminoglycoside antibiotic streptomycin prevents decoding. Option 3 is Correct.
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Correct Question:
The antibiotic streptomycin inhibits bacterial growth by binding to a protein in the 305 subunit of the ribosome. Based on this information, streptomycin inhibits...
1. DNA synthesis
2. transcription in prokaryotes
3. translation in prokaryotes
4. translation in eukaryotes
If a person lacked the ability to form C5, what direct result of complement could still occur?
a. Cytolysis
b. Opsonization
c. Chemotaxis
Opsonization and chemotaxis could still occur even if a person lacked the ability to form C5. Cytolysis requires the formation of the membrane attack complex (MAC), which involves multiple complement components including C5.
Opsonization is a process that enhances the ability of phagocytic cells to engulf and destroy pathogens or other foreign substances in the body. It involves the binding of specific molecules, called opsonins, to the surface of the pathogen or foreign substance. Opsonins are typically antibodies or complement proteins that bind to the foreign particle and "tag" it for recognition and phagocytosis by immune cells such as macrophages and neutrophils. This enhances the efficiency of the immune response and helps to clear the body of infectious agents.
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If a person lacked the ability to form C5, the direct result of complement that could still occur is Opsonization.
opsonization and chemotaxis could still occur if a person lacked the ability to form C5. Cytolysis, however, requires the activation of the membrane attack complex (MAC) which involves the C5 component.
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. if a mutation occurs such that several of the tyrosines on rtk cannot be phosphorylated, will rtk dimerize?
The ability of RTKs to dimerize is dependent on their phosphorylation status. Phosphorylation of specific tyrosine residues on the RTK allows for dimerization and subsequent activation of downstream signaling pathways.
Therefore, if a mutation occurs such that several of the tyrosines on the RTK cannot be phosphorylated, it is likely that the RTK will have a decreased ability to dimerize.
However, the specific effects of this mutation on RTK dimerization and subsequent downstream signaling pathways will depend on the location and number of tyrosine residues affected. If the mutation only affects a few tyrosine residues, the RTK may still be able to dimerize through other available tyrosine residues, albeit with reduced efficiency. If a larger number of tyrosine residues are affected, the RTK may not be able to dimerize at all.
In either case, the effects of this mutation on RTK function will likely be detrimental, as dimerization and downstream signaling are crucial for RTK-mediated cellular processes such as cell growth, differentiation, and survival. Therefore, it is important to consider the potential consequences of mutations that affect RTK phosphorylation and dimerization when studying their roles in various cellular processes and diseases.
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You discover a new organism with the following characteristics: the body is wormlike and has a fluid-filled cavity, the feeding organ looks like a proboscis, and there is a complete digestive tract. The organism is probably a(n)
nematode.
annelid.
horsehair worm.
flatworm.
ribbon worm
The organism with a wormlike body, fluid-filled cavity, proboscis-like feeding organ, and complete digestive tract is most likely a ribbon worm (phylum Nemertea), option (e) is correct.
Ribbon worms, of phylum Nemertea , are characterized by their long, thin bodies and a fluid-filled cavity known as a rhynchocoel, which houses the feeding organ or proboscis. They have a complete digestive tract, which means that food enters through the mouth and exits through the anus.
Ribbon worms are found in marine environments and are known for their ability to capture and consume prey that is much larger than their own body size. They are also able to regenerate their bodies if they are damaged or injured, making them a fascinating subject of study in the field of regeneration biology, option (e) is correct.
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The complete question is:
You discover a new organism with the following characteristics: the body is wormlike and has a fluid-filled cavity, the feeding organ looks like a proboscis, and there is a complete digestive tract. The organism is probably a(n)
a. nematode.
b. annelid.
c. horsehair worm.
d. flatworm.
e. ribbon worm
if the original diameter of the artery is d , what should be the new diameter to accomplish this for the same volume flow rate?
To keep the volume flow rate constant in an artery, despite a change in diameter, we can use the equation for the continuity equation of fluid dynamics, which states that the product of the cross-sectional area of the artery and the velocity of the blood is constant. Mathematically, this can be expressed as:
A1 x v1 = A2 x v2
Where A1 is the original cross-sectional area of the artery, v1 is the original velocity of blood flow, A2 is the new cross-sectional area of the artery, and v2 is the new velocity of blood flow.
Assuming that the blood velocity remains constant, we can rearrange the equation to solve for A2:
A2 = (A1 x v1) / v2
Since the volume flow rate (Q) is equal to the product of the cross-sectional area and velocity of the blood flow (Q = A x v), we can substitute Q for A x v in the continuity equation:
Q = A1 x v1 = A2 x v2
Thus, we can rewrite the equation for A2 as:
A2 = (Q / v2)
Substituting this expression for A2 in the earlier equation, we get:
(Q / v2) = (A1 x v1) / v2
Simplifying this equation, we can cancel out the v2 terms and solve for the new cross-sectional area (A2):
A2 = A1 x (v1 / Q)
Finally, we can use the formula for the area of a circle (A = πr^2) to find the diameter of the new artery, assuming that the cross-sectional shape of the artery is circular:
A2 = π (d2/2)^2
Substituting the expression for A2, we get:
π (d2/2)^2 = A1 x (v1 / Q)
Solving for d2, we get:
d2 = sqrt((4 x A1 x v1) / (π x Q))
Therefore, the new diameter of the artery should be equal to the square root of (4 times the original cross-sectional area times the original velocity of blood flow divided by π times the desired volume flow rate).
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A minute-by-minute change in the atmosphere is the definition of ?
Answer:weather
Explanation:
branched and striated is a description that would apply to which kind of animal tissue? A. skeletal muscle. B. cardiac muscle. C. nerve. D. stratified squamous epithelium. E. cardiac muscle
Branched and striated is a description that would apply to cardiac muscle tissue.
B is the correct answer.
Only the heart contains cardiac muscles, a sort of specialized, striated muscle. They operate autonomously and are involuntary since they are under the direction of the autonomic nervous system. Additionally, they have blood arteries that carry nutrients to the cardiac muscle tissue and waste away.
The contractility of the heart and consequent pumping motion are caused by the cardiac muscle. The heart muscle must contract with sufficient force and blood flow to meet the body's metabolic needs.
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The description of being branched and striated is a characteristic that applies to the cardiac muscle tissue. The right option is E.
This type of tissue is found in the heart and is responsible for the contraction of the heart muscles that help in pumping blood throughout the body.
The cardiac muscle tissue has the unique feature of being branched, which allows it to work as a unit and coordinate the contraction of the heart.
The striations in the cardiac muscle tissue are due to the arrangement of the contractile proteins, which give the tissue a striped appearance under the microscope.
Unlike skeletal muscles, which are under voluntary control, the cardiac muscle tissue is involuntary and works continuously to keep the heart beating.
Therefore, the answer to the question is E, cardiac muscle.
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haze is brown in color and the best way to rescue this pollutant is to reduce the amount of cars on the road in the morning rush hour traffic.
Haze is brown in color and the best way to rescue this pollutant is to reduce the amount of cars on the road in the morning rush hour traffic. This statement is false.
While haze can appear brown in color due to the presence of pollutants such as particulate matter, nitrogen oxides, sulfur dioxide, and volatile organic compounds, the statement oversimplifies the causes and solutions for haze.
Reducing the amount of cars on the road during rush hour traffic can help to reduce some of the pollutants that contribute to haze, particularly those from vehicle exhaust. However, it is not the only solution and may not be enough to completely eliminate haze. Other sources of pollution, such as industrial emissions, agricultural practices, and wildfires, also contribute to haze.
A comprehensive approach that addresses all of the sources of pollution is necessary to reduce haze. This may include increasing the use of clean energy sources, improving energy efficiency, reducing emissions from industrial processes, and implementing policies and regulations to control and reduce pollution.
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(complete question)
haze is brown in color and the best way to rescue this pollutant is to reduce the amount of cars on the road in the morning rush hour traffic.
True or false.
this portion of the diencephalon serves as a relay station for sensory input, directing that sensory input from various parts of the body to the correct area of the cerebrum:
The thalamus is the portion of the diencephalon that serves as a relay station for sensory input, directing that sensory input from various parts of the body to the correct area of the cerebrum.
The thalamus is located in the center of the brain and consists of a group of nuclei that are involved in relaying and processing sensory information, as well as regulating consciousness, sleep, and alertness.
Sensory information from the body travels through different pathways to reach the thalamus. Once it reaches the thalamus, the sensory information is organized and directed to the appropriate area of the cerebral cortex for further processing and interpretation. The thalamus plays an important role in the integration and processing of sensory information, and is involved in a wide range of sensory functions, including touch, pain, temperature, vision, and hearing.
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healthcare-associated pathogens arise from endogenous or exogenous sources. which one of these is the most likely source of endogenous infections? multiple choice question. dialysis units hospital staff hospital food normal microbiota
The most likely source of endogenous infections among the options given is normal microbiota. The Correct option is D
Endogenous pathogens are those that already exist as part of the patient's own microbiota, but under certain conditions, can cause infections. The normal microbiota refers to the collection of microorganisms that naturally reside in and on our bodies without causing harm.
Disruptions to the balance of the normal microbiota, such as through the use of antibiotics, can lead to overgrowth of certain species and the development of infections. In contrast, exogenous pathogens come from external sources, such as contaminated hospital equipment or hospital staff, while endogenous pathogens arise from the patient's own microbiota.
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Complete Question:
healthcare-associated pathogens arise from endogenous or exogenous sources. which one of these is the most likely source of endogenous infections?
a )dialysis units
b) hospital staff
c) hospital food
d) normal microbiota
Each of the following provides protection from phagocytic digestion EXCEPT A) M protein. B) capsules. C) formation of phagolysosomes. D) leukocidins.
Each of the following provides protection from phagocytic digestion EXCEPT C) formation of phagolysosomes.
Phagocytic cells, such as macrophages and neutrophils, play an essential role in the immune system by engulfing and digesting invading microorganisms.
However, some bacteria have evolved mechanisms to resist phagocytic killing, including the production of virulence factors that prevent or inhibit phagolysosome formation, such as M protein and capsules, or directly kill phagocytes, such as leukocidins.
M protein and capsules are examples of bacterial structures that can help protect the bacteria from phagocytic digestion by preventing opsonization, the process by which antibodies and complement proteins coat the surface of a microbe and enhance phagocytosis. Leukocidins are toxins produced by some bacteria that can directly kill phagocytic cells, thus preventing their ability to engulf and destroy the bacteria.
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note that neither demarcus nor natasha have the diesease. what is the probability that demarcus has the sickle cell trait?
If neither Demarcus nor Natasha has sickle cell disease, then the probability that Demarcus has the sickle cell trait depends on whether or not their parents carry the trait. Sickle cell is an inherited genetic disorder, and carriers of the trait have one copy of the abnormal gene and one copy of the normal gene.
What is the probability that Demarcus has the sickle cell trait?
If both of Demarcus' parents are carriers of the sickle cell trait, then there is a 50% chance that Demarcus has inherited the trait from one of them. In this case, Demarcus would not have sickle cell disease, but he could potentially pass the trait on to his children.
If only one of Demarcus' parents is a carrier of the sickle cell trait, then the probability that Demarcus has inherited the trait is 50%. If Demarcus has inherited the trait, he will not have sickle cell disease but may experience some symptoms associated with the trait, such as occasional pain crises, anemia, or susceptibility to infections.
There is no cure for sickle cell disease, but treatment can help manage symptoms and complications. Regular check-ups, blood transfusions, and medications to prevent infections or manage pain crises can help improve the quality of life for individuals with sickle cell disease or trait.
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To determine the probability that Demarcus has the sickle cell trait, we need more information such as the genotypes of Demarcus and Natasha, as well as information about the inheritance pattern of sickle cell trait.
Sickle cell trait is an autosomal recessive genetic condition, which means that an individual must inherit two copies of the sickle cell gene (one from each parent) to have the disease. An individual who inherits one sickle cell gene and one normal gene is said to have the sickle cell trait.
Assuming that Demarcus and Natasha are both carriers of the sickle cell gene (i.e., they each have one sickle cell gene and one normal gene), the probability of Demarcus having the sickle cell trait is 50%.
If we assume that neither Demarcus nor Natasha are carriers of the sickle cell gene, then the probability of Demarcus having the sickle cell trait is 0%. However, without more information about their genotypes, we cannot accurately determine the probability of Demarcus having the sickle cell trait.
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Fill in the blank with the appropriate term. A series of rapid mitotic divisions that produce small, genetically identical cells called blastomeres is called _____.
A series of rapid mitotic divisions that produce small, genetically identical cells called blastomeres is called Cleavage.
Fractionalization is a sequence of fast mitotic divisions that do in the zygote( fertilized egg) following fertilisation but before embryonic gene expression begins. During fractionalization, the zygote goes through a series of cell divisions, producing lower and lower cells known as blastomeres. These blastomeres are genetically identical to one another and contain a dupe of the zygote's inheritable material.
Fractionalization is a critical step in embryonic development because it results in the product of a multicellular embryo from a single- cell zygote. As the blastomeres divide, they eventually form a concave ball of cells known as a blastula, motioning the conclusion of the fractionalization stage and the launch of gastrulation.
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A series of rapid mitotic divisions that produce small, genetically identical cells called blastomeres is called cleavage.
The first week of embryonic development in humans sees the creation of blastomeres starting soon after fertilisation. Zygote division into two cells occurs 90 minutes after fertilisation. The two-cell blastomere stage, which appears after the zygote's initial division, is thought to be the earliest mitotic by-product of the fertilised egg. Blastomeres are a collection of cells created by the continuation of these mitotic divisions. The embryo's overall size stays the same throughout this process, resulting in ever-tinier cells with each division. Morula is the term used to describe a zygote that has 16 to 32 blastomeres.
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rabies is transmitted to humans through the bite of all of the following except: group of answer choices all of the above possum. raccoons. skunks.
Rabies is a virus that is transmitted through saliva, typically through the bite of an infected animal. Skunks are one of the most common animals to carry and transmit rabies to humans. So, the correct answer is c.
Skunks that are infected typically have the virus in their saliva, so when they bite a person, the saliva gets into the wound and spreads the virus.
Skunks are the most frequent carriers of the virus, while other animals including possums and raccoons may also be carriers.
Avoiding contact with wild animals and any animal that exhibits unusual or violent behaviour will help prevent rabies from spreading.
A person who has been bitten by a skunk or any wild animal should go to the hospital very away to get treated and tested for rabies.
Complete Questions:
Rabies can be transmitted to humans through the bite of which of the following animals:
a) Possum
b) Raccoon
c) Skunk
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while our immune system is fully prepared to fight foreign antigens, our t cells and b cells normally do not attack self-antigens. what is this property of adaptive immunity called?
This property of adaptive immunity is called self-tolerance. Self-tolerance is the process in which our immune system recognizes and does not attack normal self-antigens, or molecules that are part of our own bodies. This helps to avoid damage to the body’s own cells and tissues.
By recognizing its own cells, the immune system becomes activated when foreign antigens enter the body, and is then able to mount an appropriate response against it. This recognition process is carried out by two specific types of lymphocytes, or white blood cells, known as T cells and B cells.
The T cells recognize antigens as either self or non-self, whilst B cells produce antibodies against non-self antigens so that future exposures to them can be quickly responded to. This process is highly important because without it our bodies would mistakenly attack itself leading to autoimmune diseases such as rheumatoid arthritis or lupus.
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which conclusion is supported by the data in the table
The conclusion that is supported by the data in the table is C. Cell 1 is prokaryotic; Cell 2 is from an animal.
Why is this cell prokaryotic ?Cell 1 is prokaryotic because it has a cell wall, which is a characteristic feature of prokaryotic cells. Prokaryotic cells also have ribosomes and a cell membrane, which are present in both Cell 1 and Cell 2.
Additionally, prokaryotic cells lack a nucleus and other membrane-bound organelles, which are not explicitly mentioned in the given information. Therefore, based on the information provided in the table, the presence of a cell wall in Cell 1 suggests that it is a prokaryotic cell.
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enzymes known as lyases participate in ________ reactions.
Enzymes known as lyases participate in cleavage reactions.
These reactions involve breaking down a larger molecule into smaller molecules without the use of water. Lyases can also help form new bonds in the reverse reaction, known as synthesis.
In biochemistry, a lyase is an enzyme that catalyzes the breaking (an elimination reaction) of various chemical bonds by means other than hydrolysis (a substitution reaction) and oxidation, often forming a new double bond or a new ring structure. The reverse reaction is also possible (called a Michael reaction). For example, an enzyme that catalyzed this reaction would be a lyase:
ATP → cAMP + PPi
Lyases differ from other enzymes in that they require only one substrate for the reaction in one direction, but two substrates for the reverse reaction.
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