Answer:
It is called the S-A node, or rather sinus node.
Are wings on birds a structural adaptation?
Answer:
yes.
Explanation:
Nitrates are made by converting ammonia (NH3) to nitrite (NO2-) and then to nitrate (NO3-). What do you predict the O2 levels in the river will be? High - Nitrate (NO3-) contains more oxygen atoms than ammonia (NH3), so the O2 will be high. Normal - Even though oxygen atoms are added to nitrogen during the nitrogen cycle, the levels of O2 in the water will be normal. Low - The generation of nitrates (NO3-) requires oxygen, so the oxygen levels will be low.
Answer:
Low - The generation of nitrates (NO 3-) requires oxygen, so the oxygen levels will be low
Explanation:
Nitrates are formed when the ammonia react with oxygen present in water. The oxygen which react with ammonia is not the oxygen of water molecule, it is the dissolved oxygen. This oxygen is used by aquatic animals for breathing. If nitrates are formed so the concentration of dissolved oxygen will be lowered which causes suffocation and bad impact on marine organisms and the whole ecosystem will be disturbed.
The level of oxygen in the water will be low because of the generation of nitrates ([tex]NO_{3}^{-}[/tex]).
The formation of nitrates occurs by the process of nitrification, which converts the ammonia to nitrate.
The process of nitrification is involving conversion of ammonia ([tex]NH_{4} ^{+}[/tex]) to Nitrite ([tex]NO_{2} ^{-}[/tex]) by nitrosomonas and finally to Nitrate ([tex]NO_{3}^{-}[/tex]) by Nitrobacter.
Both the bacteria used are autotrophic bacteria and takes up the dissolved oxygen from the water which result in lowering of oxygen concentration in the water.
This affects the marine life and deprives the water from oxygen.
Therefore, it will lead to a low oxygen concentration in the water.
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A series of studies on mutants of Neurospora identified three classes of mutants that needed arginine added to minimal media in order to grow. The production of arginine includes the following steps: precursor → ornithine → citrulline → arginine. What nutrient(s) have to be supplied to the mutants that had a defective enzyme for the ornithine → citrulline step in order to grow?
a. the precursor
b. citrulline
c. the precursor, ornithine, and citrulline
d. either ornithine or citrulline
e. ornithine
Answer: Citrulline, Option B
Explanation:
The sequence of the formation of arginine is as follows. Precursor → ornithine → citrulline → arginine.
If there is a defective enzyme for ornithine then there will no production of citrulline or lesser production of citrulline which ultimately will affect arginine production.
So, the compound citrulline should be provided so that the production process can continue. Ornithine if not present then citrulline can alone produce arginine.
So, the correct answer is option B
are food webs different to food chains? Explain why food webs are more
useful.
Answer:
Explain a food chain and a food web.
YEaheah
Explanation:
Yes, they are different,
A food web can show many different consumers and producers in an ecosystem while in the other hand a food web just show the relationship between one group of producers and consumers.
13. What would be the complementary strand for the
DNA strand A-T-T-C-G-G-A-T.C?
Answer:
T-A-A-G-C-C-T-A-G
Explanation:
Complementary: T-A-A-G-C-C-T-A-G
mRNA(Transcription): A-U-U-C-G-G-A-U-C
You have accepted a part-time tutoring job for first-year medical students. One of your students asks if you would please clarify the details of normal fetal circulation. Which of the following best describes the path of the majority of the blood that enters the right atrium?A. RA > foramen ovale > LA > LV > systemic circulationB. RA > RV > VSD > LV > systemic circulationC. RA > RV > pulmonary circulation > LA > LV > systemic circulationD. RA > RV > ductus arteriosus > LV > systemic circulatioE. RA > RV > ductus arteriosus > systemic circulation
Answer:
A
Explanation:
In the normal fetal circulation, oxygenated blood is flows from the placenta to the liver through the umbilical vein. From the liver it flows through the ductus venosus and portal sinus to the inferior Vena Cava and then into the right atrium.
From the right atrium, majority of the blood pass through the foramen ovale into the left atrium. The foramen ovale is a small opening in the wall between the right atrium and the left atrium. It is a normal anatomical structure in fetuses which allows oxygenated blood to bypass the pulmonary circulation as the fetus is not yet getting oxygenated blood from the lungs. The foramen ovale closes at birth when the lungs become functional.
From the left atrium, the blood flows into the left ventricle and into the aorta for systemic circulation. A small amount goes through the pulmonary vessels to the lungs.
The initial laboratory results for a primigravida indicate a hemoglobin of 12 grams/dL, hematocrit of 36%, and a blood group and type of A, Rh-negative. What would be the priority nursing action to promote a healthy pregnancy for this client and her fetus? A. Suggest an iron supplement in addition to prenatal vitamins B. Plan to determine the blood type of the infant after delivery C. Provide information on weight gain during pregnancy D. Encourage the client to eat more dark-green leafy vegetables
Answer: B.
Explanation:
The normal hemoglobin and hematocrit level of a pregnant women is 12–16 g/dL and 36–46%.
Hence, as the given pregnant women has hemoglobin and hematocrit level under the normal range without any other deficiency, the nursing action will be to determine the blood type of the infant after delivery.
All the other given options are provided under some deficiencies.
Hence, the correct option is B.
Dr. White has formulated a hypothesis on how the gene environment correlation model may account for the development of depression. Select the hypothesis most likely developed by Dr. White that follows the gene environment correlation model:____________
1. People with the genetic tendency to develop depression pursue unstable relationships, activating the onset of the disorder.
2. People with a genetic tendency to develop depression perceive a greater impact from certain situations, prompting the development of the disorder.
3. People that seek out unstable relationships and develop depression activate genes that pinpoint their genetic vulnerability.
4. People with a genetic tendency to develop depression happen to have a greater amount of interactions that prompt the development of the disorder.
Answer:A
Explanation:
The hypothesis most likely developed by Dr. White in relation to the gene environment correlation model is that individuals who seek out unstable relationships activate genes linked to their genetic vulnerability for depression.
Explanation:The hypothesis most likely developed by Dr. White that follows the gene environment correlation model is option 3: People that seek out unstable relationships and develop depression activate genes that pinpoint their genetic vulnerability. This hypothesis suggests that individuals with a genetic tendency for depression engage in behavior (seeking out unstable relationships) that activates specific genes associated with their vulnerability to develop depression.
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Consider the events involved in the stimulation of heart muscle. Arrange the events in the stimulation of heart muscle in sequence. Note that this question does not list every step in the pathway, but the steps presented should be arranged in order.
1. Conversion of ATP into cyclic AMP
2. Activation of G-proteins
3. Phosphorylation of proteins that induce contraction in muscle cells
4. Activation of protein kinase A
5. Activation of adenylyl cyclase
Explanation:
Activation of trimeric G protein starts when primary messenger binds with 7 transmembrane protein and activate itThere are three types of trimeric G protein: GS,GI and GqActivated 7 transmembrane acts as guanosine nucleotide exchange factor (GEF) and replace GDP from GTP of trimeric G proteinActivated GS protein dissociate into two components called GS[tex]\alpha[/tex] GTP and Gβγ GS[tex]\alpha[/tex] GTP moves along with membrane and binds with effector enzyme called adenylyl cyclase (activation)Activated adenylyl cyclase catalyse synthesis of a potent secondary messenger called cAMP (cyclic adenosine monophosphate)High level of cAMP activates a protein called protein kinase A (pKA) which phosphorylates phosphorylase kinase (pK) and activates itOn the other hand at the same time pKA phosphorylates glycogen synthase (GS) and inactivate itPhosphorylase kinase becomes active and phosphorylates glycogen phosphorylase and makes it active, glycogen phosphorylase catalyse breakdown of glycogen (in liver and muscle cells)The correct sequence starts with the activation of G-proteins, followed by activation of adenylyl cyclase, conversion of ATP into cyclic AMP, activation of protein kinase A, and ends with the phosphorylation of proteins inducing contraction in muscle cells.
The question involves understanding the sequence of events in the stimulation of heart muscle cells, described through the activation of various cellular processes. Here is the correct sequence based on the information provided:
Activation of G-proteinsActivation of adenylyl cyclaseConversion of ATP into cyclic AMPActivation of protein kinase APhosphorylation of proteins that induce contraction in muscle cellsThrough this sequence, starting with the activation of G-proteins and ending with the phosphorylation of proteins, a complex pathway of cellular signaling is illuminated. This pathway culminates in the contraction of heart muscle cells, showcasing the intricacy of biological systems in regulating heart function.
Which fraction represents 25% of the offspring in a genetic cross?
Ο 1/4
Ο 3/4
Ο 1/2
Ο 4/2
Answer:
1/4
Explanation:
1/4 (one fourth) is the same as 25%.
Example:
if you have four quarters, you have one US dollar. If you spend 75 cents, then you have 25 cents left. That 25 cents is 25% of 1 dollar
The fraction representing 25% of the offspring in a genetic cross is ¼. Hence, the first option is the correct option. The genetic crossing takes place between two parents.
What is genetic cross?
A genetic cross takes place between two parents. Each parent produces the gametes. These gametes make up the genes for the offspring. An example is a cross between two heterozygous tall plants.
The tall character is represented by T. The dwarf character is represented by t. T is dominant over small t. A homozygous tall plant is represented by TT. A heterozygous tall plant is represented by Tt. A dwarf plant is represented by tt
After the crossing of heterozygous Tt plants, ¼ TT ,½ Tt ,¼ tt plants are observed. Hence, 50% of plants are heterozygous tall ( Tt) ,25% of plants homozygous tall ( TT) , and 25% plants are homozygous dwarf ( tt) . The genetic cross is explained in the image.
Hence, the correct answer is ¼ represents 25% of the offspring in a genetic cross. First option is the correct answer.
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Hello can anyone help on this? Thank you If you can.
Answer:
B
Explanation:
If the rock is on top it will be more resistant to erosion since water and other elements wont be able to reach it
What are the causes that makes the actin and myosin filaments to slide past one another during muscle contraction?
Answer:
When calcium ions bind to troponin, causing conformational changes in troponin that allow tropomyosin to move away from the myosin binding sites on actin. Once the tropomyosin is removed, a cross-bridge can form between actin and myosin, causing contraction.
Explanation:
Muscles contract through the action of two proteins called actin and myosin.There are two other regulatory proteins tropomyosin and troponin. Muscles are composed of two major protein filaments: a thick filament composed of the protein myosin and a thin filament composed of the protein actin.Skeletal muscle is composed of a repeating structure of myosin and actin fibers. Each myosin thick filament is surrounded by actin thin filaments, and each thin filament is surrounded by thick filaments. Muscle contraction occurs when these filaments slide over one another in a series of repetitive events.
When a muscle contracts, the actin is pulled along myosin toward the center of the sarcomere until the actin and myosin filaments are completely overlapped. In other words, for a muscle cell to contract, the sarcomere must shorten. ATP is critical to prepare myosin for binding and to “recharge” the myosin. ATP first binds to myosin, moving it to a high-energy state. The ATP is hydrolyzed into ADP and inorganic phosphate (Pi) by the enzyme ATPase. The energy released during ATP hydrolysis changes the angle of the myosin head into a “cocked” position, ready to bind to actin if the sites are available. ADP and Pi remain attached; myosin is in its high energy configuration.The muscle contraction cycle is triggered by calcium ions binding to the protein complex troponin, exposing the active-binding sites on the actin. As soon as the actin-binding sites are uncovered, the high-energy myosin head bridges the gap, forming a cross-bridge. Once myosin binds to the actin, the Pi is released, and the myosin undergoes a conformational change to a lower energy state. As myosin expends the energy, it moves through the “power stroke,” pulling the actin filament toward the M-line. When the actin is pulled approximately 10 nm toward the M-line, the sarcomere shortens and the muscle contracts. At the end of the power stroke, the myosin is in a low-energy position.
After the power stroke, ADP is released, but the cross-bridge formed is still in place. ATP then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site. ATP can then attach to myosin, which allows the cross-bridge cycle to start again; further muscle contraction can occur. Therefore, without ATP, muscles would remain in their contracted state, rather than their relaxed state.
Plants that have a single cotyledon in their seed are classified as what?
dicots
monocots
angiosperms
gymnosperms
Answer:
Monocots
Explanation:
Species with one cotyledon are called monocotyledonous (or, "monocots") and placed in the Class Liliopsida.
what is the limiting factor that depends on the number of individuals in a population
why do you think the distribution of fur traits changed over time?
Answer
Explanation:
I think its because over the years since more individuals with high fur levels survived more harsh environment , animals have evolve high fur-level trait became more common in Population A over time, and the low fur-level trait became less common. The high fur-level trait was an more adaptive trait.
When The distribution of traits and also changed in these populations because as generations passed in this environment in Population A.
Variation of TraitsThen the variation of traits are decreased as the distribution of traits then they are shifted so that there was only medium level fur traits, and also as Population completely died out.
traits changed When the individuals with high fur levels are survived more harsh environment.
Also animals have evolve high fur-level trait became more common in Population A over time, and also the low fur-level trait became less common.
Thus, The high fur-level trait was an more adaptive trait.
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A registered nurse is teaching a student nurse about tissue plasminogen activator (tPA) administration in a patient with ischemic stroke. Which statement made by the student nurse indicates a need for further teaching?A. tPA is administered intravenously (IV).B. tPA is administered by intraarterial infusion.C. tPA should be administered within 12 hours of the onset of a stroke.D. tPA requires blood pressure monitoring during and 24 hours after the treatment.
Answer: C. tPA should be administered within 12 hours of the onset of a stroke.
Explanation:
The tPA should be administered to the patient affected by the onset of the ischemic stroke within 3 to 4 hours, should not be waited for 12 hours. The tPA should be administered intravenously. When tPA administered through intraarterial infusion directly to the clot, it must be administered within 6 hours. During the fibrinolytic treatment it is important to monitor the blood pressure, as if the blood pressure is not controlled this can alter the treatment.
The unwinding of DNA at the replication fork causes twisting and strain in the DNA ahead of the fork, which is relieved by an enzyme called __________.
Answer:
Topoisomerase
Explanation:
Topoisomerase is an enzyme that is involved in the unwinding of Deoxyribonucleic acid (DNA). They are involved in double stranded DNA and they help to relieve the making of supercoils.
Topoisomerase play an important role during DNA replication, as the prevent the the twisting of the DNA double helix ahead of the replication fork. In other words, they ensure that the DNA open up for unwinding without being tightly wound.
Answer:
The correct answer is "topoisomerase".
Explanation:
Topoisomerase is an enzyme that is essential to perform DNA replication and transcription. Topoisomerase catalyzes the overwinding or underwinding of DNA, for which they are know as "the magicians of the DNA world" because they relieve the twisting that are formed in the DNA ahead of the fork during replication. Topoisomerase are needed because of the intertwined nature of its double-helical structure
Recall the three discoveries Erwin Chargaff made while studying DNA: the total amount of pyrimidines (T+C) equals the total amount of purines (A+G), the amount of T equals the amount of A, and the amount of G equals the amount of C. These three "rules" led to what conclusion(s) about DNA base pairing?
A purine base pairs with a pyrimidine base.
A pairs with T.
G pairs with C.
All of the answer options are correct.
None of the answer options is correct.
Answer:
All of the answer options are correct.
Explanation:
Chargaff contributed in understanding the structure and composition of DNA with his discoveries. He discovered that purine and pyrimidine bases are in equal amounts in a DNA molecule. He also discovered that amount of Adenine base (A) is equal to amount of Thymine base (T). It means that A pairs with T. Since A is a purine and T is a pyrimidine it also implies that purine base pairs with a pyrimidine base. This conclusion can also be arrived by taking in consideration the other base pair which is G (purine) and C (pyrimidine).
In what way(s) can mRNAs be processed? In what way(s) can mRNAs be processed? By adding caps and tails to the ends of the mRNAs By removing the introns (the noncoding regions) of the mRNAs By splicing the exons (the coding regions) of the mRNAs in different ways All of the above are ways in which mRNAs can be processed
Answer:
All of the above are ways in which mRNA can be processed.Explanation:
DNA is transcribed into pre-mRNA which is further processed into mature mRNA. mRNA be processed by various ways: as at the 5' end of RNA, addition of capping occurs, and at the 3' end, there is addition of large number of adenosine ( approx 200), known as polyadenylation.
RNA splicing is the process of removal of introns and of addition of exons, through which only coding sequences (exons) remain in the mature mRNA and non coding regions(intron) are removed.
Alternative splicing may produced various type of mRNA from a single type of pre- mRNA.
All of the steps mentioned—capping, removal of introns, and alternative splicing—are essential processes involved in mRNA processing. These modifications prepare the mRNA for stability, translation, and efficient functioning. Thus, the correct response is all of the above.
mRNAs undergo a series of important modifications before they are ready for translation. These post-transcriptional modifications ensure the mRNA is stable, correctly formatted, and capable of being effectively translated into proteins. The main processing steps include:
Addition of a 5' cap: A 5' methylguanosine cap is added to the beginning (5' end) of the mRNA. This cap protects the mRNA from degradation and is vital for the ribosome binding required for translation. Splicing: This involves removing introns, which are non-coding regions of the mRNA. Exons, the coding regions, are then joined together. This process is executed by spliceosome complexes.Addition of a poly-A tail: A sequence of adenine nucleotides is added to the 3' end of the mRNA. This poly-A tail aids in the export of the mRNA from the nucleus and enhances stability and translation efficiency.In summary, all these steps—capping, splicing, and polyadenylation—are crucial for processing mRNA before it can be used in protein synthesis.
6. How can we decrease the amount of atmospheric CO.?
Latecia conducted an experimental investigation of the gas production of a water plant. She placed a beaker upside down over a water plant submerged in water and collected the gas that ghe water plant produced when kept in sunlight. After several days, a large bubble of gas collected in the upside-down beaker.
Answer: After several days, a large bubble of gas collected in the upside-down beaker contains OXYGEN.
Explanation:
Plants are known to be be autotrophic (producers) through the use of inorganic substance such as water, carbondioxide and light energy from sunlight in a process known as photosynthesis.
An experiment was carried out by Latecia for investigation of the gas production of a water plant. It's therefore expected that OXYGEN gas which is the by-product given off during photosynthesis in green plants would be collected from the upside down beaker as gas bubbles.
Eukaryotes use mRNA to carry the sequence for a protein to the ribosomes outside of the nucleus. Why then don't prokaryotes translate DNA directly, rather than use mRNA, which in eukaryotes is the code that passes from the interior of the nucleus to the site of protein synthesis?
Answer:
Here in case of prokaryotes, If proteins were made directly from DNA, then the prokaryotes would always express every gene in their genome.Explanation:
Eukaryotes use mRNA to carry the sequence for protein synthesis, to the ribosomes outside of the nucleus.
In the eukaryotes, mRNA is processed (capping, poly-adenylation and RNA splicing) before translation. But these processes are absent in prokaryotes.
Prokaryotes don't translate DNA directly because control of transcription of mRNA is a major method of controlling gene expression
.
Here in case of prokaryotes, If proteins were made directly from DNA, then the prokaryotes would always express every gene in their genome.
Explanation:
Prokaryotes translate DNA directly, rather than use mRNA, which in eukaryotes is the code that passes from the interior of the nucleus to the site of protein synthesis because control of transcription of mRNA is a major method of controlling gene expression
Gene expression is a multi-step process, ultimately produce either functional RNA or functional protein
If proteins were made directly from DNA, prokaryotes would always express every gene in their genome
An example of the role of cultural practices shaping natural selection on genes that affect human health concerns
a. sufferer's nerves
b. lactose intolerance
c. sucrose intolerance
d. none of the above
Answer:
The correct answer here is D) None of the above
Explanation:
Lactose intolerance and sucrose intolerance in themselves are not practices but side effects of practices that affect health concerns.
For instance, research shows that cultures with a long history of dairy farming and milk drinking or at least a history of drinking milk have a much higher likelihood to be lactose tolerant than those who don't. And when they can tolerate lactose their bodies take note of this and records the same in their genetic databank.
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A segment of dna on a chromosome that codes for a specific trait is called
A gene represents a segment of DNA on a chromosome that codes for a specific trait. Each gene provides the instructions to construct a unique protein that contributes to the body's functioning. Differences in genes contribute to our unique traits.
Explanation:Genes are the fundamental units of heredity and contain the instructions for the synthesis of proteins or functional RNA molecules that ultimately determine various traits and characteristics in an organism. Each gene provides the instructions or codes necessary to construct a specific protein that contributes to the body's functioning. To understand it better, view DNA as a cookbook and genes as the recipes, with each recipe producing a different dish (in this case, protein), each contributing to the health and functioning of the body. Differences in genes are what make us unique, as these small differences influence traits such as eye color, hair color, height, and potential susceptibility to certain diseases.
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metalloids are useful as semiconductors in modern electrons, like smartphones. Which feature of a smartphone is made possible by metalloids
Answer:
Small Size
Explanation:
Answer:
small size
Explanation:
edgenuity test
A model of DNA replication in which the parental DNA molecule is maintained and the daughter DNA molecule contains two newly synthesized strands of DNA is called ____________ replication. Please choose the correct answer from the following choices, and then select the submit answer button.
Answer:
Semi-Conservative
Explanation:
After DNA replication, the parental DNA molecule contains two original DNA strands while the daughter molecule is composed of two newly synthesized strands. In this model, the two DNA strands in the parental molecule separate from each other and serve as templates for the synthesis of daughter strands.
The correct model of DNA replication where the parental molecule is preserved and the daughter molecule contains two new strands is called conservative replication. However, the scientifically supported model is the semi-conservative replication, where each daughter DNA molecule includes one old and one new DNA strand.
A model of DNA replication where the parental DNA molecule is preserved and the daughter DNA molecule comprises entirely new synthesized strands is called conservative replication. However, the correct model supported by the Meselson-Stahl experiment is semi-conservative replication, in which each new DNA molecule consists of one old (parental) strand and one new strand. The other model mentioned, dispersive replication, proposed that new DNA molecules would have mixed segments of old and new DNA, but this was not supported by experimental evidence.
In semi-conservative replication, the parental DNA helix unwinds, and each strand then serves as a template for a new complementary strand. Once replication is completed, each resulting DNA molecule consists of one parental and one newly synthesized strand. Therefore, the semi-conservative method ensures that each daughter cell receives one old and one new DNA strand.
what is the name of the organ that provides pressure to transport body fluid
Answer:
Extracellular fluid (ECF) denotes all body fluid outside the cells of any multicellular organism. ... These constituents are often called fluid compartments. ... The extracellular fluid provides the medium for the exchange of substances between ... is also evenly distributed at the correct partial pressure to all the cells of the body.
Explanation:
Answer:
The Liver Provides pressure for the transfer of body fluid.
Which best describes how the sun rotates? A.The sun does not rotate. B.The sun rotates every 11 years. C.The sun rotates once each year. D.The sun rotates more slowly at its poles.
Answer:
D
Explanation:
Answer:
D. The sun rotates more slowly at its poles
Explanation:
I got it right on APEX
Which component of blood allows oxygen from the air to move from the lungs to cells of the body
Answer:
hemoglobin
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Red blood cells, with the help of hemoglobin, transport oxygen from the lungs to the body's cells, and facilitate the movement of carbon dioxide in the opposite direction. Oxygen binds to hemoglobin within the red blood cells which are then circulated through the body by the cardiovascular system.
The component of blood that allows oxygen to move from the lungs to the cells of the body is the erythrocyte, or red blood cell. Red blood cells contain hemoglobin, a protein that can bind oxygen molecules. During external respiration, oxygen enters the alveoli in the lungs, where it is then diffused into the blood which is carried by the pulmonary capillaries. The oxygen molecules are picked up by hemoglobin within the red blood cells. This oxygen-rich blood, now bright red in color, is transported via the pulmonary veins back to the heart and then pumped to the rest of the body through systemic circulation. The systemic circulation provides oxygen and nutrients to body tissues and picks up waste materials such as carbon dioxide, which diffuses from body cells back into the capillaries and is eventually expelled from the lungs.
After resupplying the body cells with oxygen, the now deoxygenated blood, which carries carbon dioxide, returns to the heart and then to the lungs. During exhalation, carbon dioxide is released into the air completing the gas exchange cycle. Thus, red blood cells and hemoglobin are essential for transporting oxygen and carbon dioxide in the blood.
Independent assortment occurs only in cells that are heterozygous for two genes (AaBb) and not in cells that are completely homozygous (AABB or aabb). View Available Hint(s) Independent assortment occurs only in cells that are heterozygous for two genes (AaBb) and not in cells that are completely homozygous (AABB or aabb). True False
Answer:
False
Explanation:
Gregor Mendel, who was referred to as the FATHER OF GENETICS, discovered the principles that governs heredity. One of those principles which he called LAW OF INDEPENDENT ASSORTMENT states that the alleles of a gene randomly segregates into gametes independently of the alleles of another gene. This means that during gamete formation (meiosis), the separation of the alleles of one gene doesn't affect the separation of the alleles of another gene.
Mendel discovered this principle when he worked with two genes that was responsible for two distinct characters. Hence, in a cell that contains two genes responsible for two different characters in the organism, independent assortment will always occur during gamete formation. Although, in an organism that is homozygous for both traits (AABB or aabb), only one type of allelic combination will be produced in the gamete. However, the alleles will still randomly align and separate independently of one another during Metaphase and Anaphase stages of meiosis.
Answer:
False
Explanation:
The law of independent assortment states that characters are inherited independently of one another. That is, for example, genes A and B are inherited independently without any interference of A on B or B on A.
Independent assortment occur in genes that are not linked together on the same chromosome. More specifically, two genes on the same chromosome will assort independently provided there is a certain minimum distance between them.
Hence, independent assortment has nothing to do with whether a gene is homozygous or heterozygous.
The answer is false.