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Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?
- a)Perform a testcross with a barley plant that has a tall stalk and thin leaves
- b)Perform a testcross with a known heterozygous barley plant
- c)Perform a testcross with a barley plant that has a short stalk and thin leaves
- d)Perform a testcross with a barley plant that has a tall stalk and wide leaves
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Suppose that in barley plants, the allele for tall stalks is dominant ...
he best way to determine the genotype of a barley plant with a tall stalk and wide leaves would be to perform a testcross with a barley plant that has a short stalk and thin leaves.
A testcross involves crossing the individual of unknown genotype with an individual that is homozygous recessive for both traits. In this case, the individual with a short stalk and thin leaves would be homozygous recessive for both the tall stalk and wide leaves alleles.
By performing a testcross with a barley plant that has a short stalk and thin leaves, any offspring that exhibit the recessive traits (short stalk and thin leaves) would indicate that the tested plant is heterozygous for both traits. On the other hand, if all the offspring have the dominant traits (tall stalk and wide leaves), it would suggest that the tested plant is homozygous dominant for both traits.
Most Upvoted Answer
Suppose that in barley plants, the allele for tall stalks is dominant ...
Explanation:
To determine the genotype of a barley plant with a tall stalk and wide leaves, a testcross needs to be performed. A testcross involves crossing the individual of interest with a homozygous recessive individual to determine the genotype of the individual in question.
The given information states that the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. Let's denote the dominant alleles for tall stalks as "T" and the recessive allele for short stalks as "t". Similarly, let's denote the dominant alleles for wide leaves as "W" and the recessive allele for thin leaves as "w".
Testcross Options:
a) Perform a testcross with a barley plant that has a tall stalk and thin leaves:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with a plant that has a tall stalk and thin leaves.
- This testcross would not provide any useful information about the genotype of the plant in question because the genotype of the testcross parent is unknown.
b) Perform a testcross with a known heterozygous barley plant:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with a known heterozygous plant (e.g., TtWw).
- This testcross would provide information about whether the plant in question is homozygous dominant (TTWW) or heterozygous (TtWw).
- However, it would not provide information about the specific genotype of the plant in question.
c) Perform a testcross with a barley plant that has a short stalk and thin leaves:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with a plant that has a short stalk and thin leaves (ttww).
- This testcross would provide the most useful information about the genotype of the plant in question.
- If the offspring from the testcross all have tall stalks and wide leaves, it would indicate that the plant in question is homozygous dominant (TTWW).
- If any offspring have short stalks or thin leaves, it would indicate that the plant in question is heterozygous (TtWw).
d) Perform a testcross with a barley plant that has a tall stalk and wide leaves:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with another plant that has a tall stalk and wide leaves.
- This testcross would not provide any useful information about the genotype of the plant in question because the genotype of the testcross parent is unknown.
Conclusion:
Therefore, the best way to determine the genotype of a barley plant with a tall stalk and wide leaves is to perform a testcross with a barley plant that has a short stalk and thin leaves (option C). This testcross would provide information about whether the plant in question is homozygous dominant or heterozygous for both traits.
To determine the genotype of a barley plant with a tall stalk and wide leaves, a testcross needs to be performed. A testcross involves crossing the individual of interest with a homozygous recessive individual to determine the genotype of the individual in question.
The given information states that the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. Let's denote the dominant alleles for tall stalks as "T" and the recessive allele for short stalks as "t". Similarly, let's denote the dominant alleles for wide leaves as "W" and the recessive allele for thin leaves as "w".
Testcross Options:
a) Perform a testcross with a barley plant that has a tall stalk and thin leaves:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with a plant that has a tall stalk and thin leaves.
- This testcross would not provide any useful information about the genotype of the plant in question because the genotype of the testcross parent is unknown.
b) Perform a testcross with a known heterozygous barley plant:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with a known heterozygous plant (e.g., TtWw).
- This testcross would provide information about whether the plant in question is homozygous dominant (TTWW) or heterozygous (TtWw).
- However, it would not provide information about the specific genotype of the plant in question.
c) Perform a testcross with a barley plant that has a short stalk and thin leaves:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with a plant that has a short stalk and thin leaves (ttww).
- This testcross would provide the most useful information about the genotype of the plant in question.
- If the offspring from the testcross all have tall stalks and wide leaves, it would indicate that the plant in question is homozygous dominant (TTWW).
- If any offspring have short stalks or thin leaves, it would indicate that the plant in question is heterozygous (TtWw).
d) Perform a testcross with a barley plant that has a tall stalk and wide leaves:
- This option involves crossing the plant in question (Tall stalk, wide leaves) with another plant that has a tall stalk and wide leaves.
- This testcross would not provide any useful information about the genotype of the plant in question because the genotype of the testcross parent is unknown.
Conclusion:
Therefore, the best way to determine the genotype of a barley plant with a tall stalk and wide leaves is to perform a testcross with a barley plant that has a short stalk and thin leaves (option C). This testcross would provide information about whether the plant in question is homozygous dominant or heterozygous for both traits.
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Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer?.
Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for MCAT.
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Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?a)Perform a testcross with a barley plant that has a tall stalk and thin leavesb)Perform a testcross with a known heterozygous barley plantc)Perform a testcross with a barley plant that has a short stalk and thin leavesd)Perform a testcross with a barley plant that has a tall stalk and wide leavesCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice MCAT tests.
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