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What map unit (Centimorgan) is adopted in the construction of genetic maps?
- a)A unit of distance between two expressed genes representing 10% cross over.
- b)A unit of distance between two expressed genes representing 100% cross over.
- c)A unit of distance between genes on chromosomes, representing 1% cross over.
- d)A unit of distance between genes on chromosomes, representing 50% cross over.
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
What map unit (Centimorgan) is adopted in the construction of genetic ...
1 map unit represent 1 % cross over.
Map unit is used to measure genetic distance.
This genetic distance is based on average number of cross over frequency.
Map unit is used to measure genetic distance.
This genetic distance is based on average number of cross over frequency.
Most Upvoted Answer
What map unit (Centimorgan) is adopted in the construction of genetic ...
Centimorgan as a Unit of Distance
Centimorgan (cM) is a unit of distance that is commonly used in the construction of genetic maps. It represents the relative distance between genes on chromosomes, specifically the distance at which recombination (crossing over) occurs with a frequency of 1%.
Explanation of the Correct Answer
The correct answer is option 'C', which states that a centimorgan is a unit of distance between genes on chromosomes, representing 1% cross over. This means that if two genes are located 1 centimorgan apart on a genetic map, they are expected to undergo recombination with a frequency of 1% during meiosis.
Understanding Recombination and Genetic Maps
Recombination refers to the exchange of genetic material between homologous chromosomes during meiosis. It occurs through the process of crossing over, where segments of DNA are exchanged between chromatids of paired chromosomes. Recombination plays a crucial role in generating genetic diversity and ensuring proper segregation of chromosomes.
Genetic maps are constructed based on the frequency of recombination between genes. The distance between two genes on a map is measured in centimorgans, which represents the likelihood of recombination occurring between them.
Interpreting the Options
a) Option 'A' states that a centimorgan represents a distance between two expressed genes representing 10% cross over. This is incorrect because a centimorgan corresponds to 1% cross over, not 10%.
b) Option 'B' suggests that a centimorgan represents a distance between two expressed genes representing 100% cross over. This is also incorrect because 100% cross over means that the genes are completely linked and do not undergo recombination.
Conclusion
In summary, the construction of genetic maps involves the use of centimorgans as a unit of distance between genes on chromosomes. A centimorgan represents a 1% chance of recombination occurring between two genes. This unit helps researchers understand the relative positions of genes on chromosomes and provides insights into genetic linkage and inheritance patterns.
Centimorgan (cM) is a unit of distance that is commonly used in the construction of genetic maps. It represents the relative distance between genes on chromosomes, specifically the distance at which recombination (crossing over) occurs with a frequency of 1%.
Explanation of the Correct Answer
The correct answer is option 'C', which states that a centimorgan is a unit of distance between genes on chromosomes, representing 1% cross over. This means that if two genes are located 1 centimorgan apart on a genetic map, they are expected to undergo recombination with a frequency of 1% during meiosis.
Understanding Recombination and Genetic Maps
Recombination refers to the exchange of genetic material between homologous chromosomes during meiosis. It occurs through the process of crossing over, where segments of DNA are exchanged between chromatids of paired chromosomes. Recombination plays a crucial role in generating genetic diversity and ensuring proper segregation of chromosomes.
Genetic maps are constructed based on the frequency of recombination between genes. The distance between two genes on a map is measured in centimorgans, which represents the likelihood of recombination occurring between them.
Interpreting the Options
a) Option 'A' states that a centimorgan represents a distance between two expressed genes representing 10% cross over. This is incorrect because a centimorgan corresponds to 1% cross over, not 10%.
b) Option 'B' suggests that a centimorgan represents a distance between two expressed genes representing 100% cross over. This is also incorrect because 100% cross over means that the genes are completely linked and do not undergo recombination.
Conclusion
In summary, the construction of genetic maps involves the use of centimorgans as a unit of distance between genes on chromosomes. A centimorgan represents a 1% chance of recombination occurring between two genes. This unit helps researchers understand the relative positions of genes on chromosomes and provides insights into genetic linkage and inheritance patterns.
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What map unit (Centimorgan) is adopted in the construction of genetic maps?a)A unit of distance between two expressed genes representing 10% cross over.b)A unit of distance between two expressed genes representing 100% cross over.c)A unit of distance between genes on chromosomes, representing 1% cross over.d)A unit of distance between genes on chromosomes, representing 50% cross over.Correct answer is option 'C'. Can you explain this answer?
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What map unit (Centimorgan) is adopted in the construction of genetic maps?a)A unit of distance between two expressed genes representing 10% cross over.b)A unit of distance between two expressed genes representing 100% cross over.c)A unit of distance between genes on chromosomes, representing 1% cross over.d)A unit of distance between genes on chromosomes, representing 50% cross over.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What map unit (Centimorgan) is adopted in the construction of genetic maps?a)A unit of distance between two expressed genes representing 10% cross over.b)A unit of distance between two expressed genes representing 100% cross over.c)A unit of distance between genes on chromosomes, representing 1% cross over.d)A unit of distance between genes on chromosomes, representing 50% cross over.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What map unit (Centimorgan) is adopted in the construction of genetic maps?a)A unit of distance between two expressed genes representing 10% cross over.b)A unit of distance between two expressed genes representing 100% cross over.c)A unit of distance between genes on chromosomes, representing 1% cross over.d)A unit of distance between genes on chromosomes, representing 50% cross over.Correct answer is option 'C'. Can you explain this answer?.
What map unit (Centimorgan) is adopted in the construction of genetic maps?a)A unit of distance between two expressed genes representing 10% cross over.b)A unit of distance between two expressed genes representing 100% cross over.c)A unit of distance between genes on chromosomes, representing 1% cross over.d)A unit of distance between genes on chromosomes, representing 50% cross over.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What map unit (Centimorgan) is adopted in the construction of genetic maps?a)A unit of distance between two expressed genes representing 10% cross over.b)A unit of distance between two expressed genes representing 100% cross over.c)A unit of distance between genes on chromosomes, representing 1% cross over.d)A unit of distance between genes on chromosomes, representing 50% cross over.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What map unit (Centimorgan) is adopted in the construction of genetic maps?a)A unit of distance between two expressed genes representing 10% cross over.b)A unit of distance between two expressed genes representing 100% cross over.c)A unit of distance between genes on chromosomes, representing 1% cross over.d)A unit of distance between genes on chromosomes, representing 50% cross over.Correct answer is option 'C'. Can you explain this answer?.
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