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What map unit (Centimorgan) is adopted in the construction of genetic maps? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross?
Most Upvoted Answer
What map unit (Centimorgan) is adopted in the construction of genetic ...
1 map unit represents 1% cross over. Map unit is used to measure genetic distance. This genetic distance is based on average number of cross over frequency.
So, correct answer is "A unit of distance between genes of chromosomes , representing 1%"...
$$Hope it's help... $$
So, correct answer is "A unit of distance between genes of chromosomes , representing 1%"...
$$Hope it's help... $$
Community Answer
What map unit (Centimorgan) is adopted in the construction of genetic ...
Map Unit (Centimorgan) in Genetic Maps
Introduction
Genetic maps provide a way to understand the arrangement of genes on chromosomes and the relative distances between them. These maps are constructed based on the concept of recombination, which occurs during the crossing over of homologous chromosomes during meiosis. The unit of distance used in genetic mapping is the centimorgan (cM), named after the geneticist Thomas Hunt Morgan.
Centimorgan
A centimorgan represents a unit of distance between genes on a chromosome. It is a measure of the frequency of recombination events between two genes. One centimorgan is defined as a 1% chance of recombination occurring between two genes during meiosis. Therefore, the higher the centimorgan value, the greater the distance between two genes on a chromosome.
Options
1. A unit of distance between two expressed genes representing 10% crossover
2. A unit of distance between two expressed genes representing 100% crossover
3. A unit of distance between genes of chromosomes, representing 1% crossover
4. A unit of distance between genes chromosomes, representing 50% crossover
Correct Answer
The correct answer is option (3): A unit of distance between genes of chromosomes, representing 1% crossover.
Explanation
- A centimorgan is defined as a 1% chance of recombination occurring between two genes during meiosis.
- It represents a unit of distance on a genetic map.
- As the distance between two genes increases, the likelihood of recombination events occurring between them also increases.
- Therefore, the centimorgan value reflects the relative distance between two genes on a chromosome.
- Option (1) is incorrect because a 10% crossover would correspond to a higher distance between genes, which would be represented by a higher centimorgan value.
- Option (2) is incorrect because a 100% crossover would indicate that the two genes are located very close to each other or are tightly linked, resulting in a centimorgan value of zero.
- Option (4) is incorrect because a 50% crossover would also indicate a close proximity or tight linkage between genes, resulting in a centimorgan value close to zero.
Conclusion
Genetic maps use the centimorgan as a unit of distance between genes on a chromosome. It represents a 1% chance of recombination occurring between two genes during meiosis. This unit helps in understanding the relative distances and arrangement of genes on chromosomes, contributing to our understanding of genetic inheritance and evolution.
Introduction
Genetic maps provide a way to understand the arrangement of genes on chromosomes and the relative distances between them. These maps are constructed based on the concept of recombination, which occurs during the crossing over of homologous chromosomes during meiosis. The unit of distance used in genetic mapping is the centimorgan (cM), named after the geneticist Thomas Hunt Morgan.
Centimorgan
A centimorgan represents a unit of distance between genes on a chromosome. It is a measure of the frequency of recombination events between two genes. One centimorgan is defined as a 1% chance of recombination occurring between two genes during meiosis. Therefore, the higher the centimorgan value, the greater the distance between two genes on a chromosome.
Options
1. A unit of distance between two expressed genes representing 10% crossover
2. A unit of distance between two expressed genes representing 100% crossover
3. A unit of distance between genes of chromosomes, representing 1% crossover
4. A unit of distance between genes chromosomes, representing 50% crossover
Correct Answer
The correct answer is option (3): A unit of distance between genes of chromosomes, representing 1% crossover.
Explanation
- A centimorgan is defined as a 1% chance of recombination occurring between two genes during meiosis.
- It represents a unit of distance on a genetic map.
- As the distance between two genes increases, the likelihood of recombination events occurring between them also increases.
- Therefore, the centimorgan value reflects the relative distance between two genes on a chromosome.
- Option (1) is incorrect because a 10% crossover would correspond to a higher distance between genes, which would be represented by a higher centimorgan value.
- Option (2) is incorrect because a 100% crossover would indicate that the two genes are located very close to each other or are tightly linked, resulting in a centimorgan value of zero.
- Option (4) is incorrect because a 50% crossover would also indicate a close proximity or tight linkage between genes, resulting in a centimorgan value close to zero.
Conclusion
Genetic maps use the centimorgan as a unit of distance between genes on a chromosome. It represents a 1% chance of recombination occurring between two genes during meiosis. This unit helps in understanding the relative distances and arrangement of genes on chromosomes, contributing to our understanding of genetic inheritance and evolution.
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What map unit (Centimorgan) is adopted in the construction of genetic maps? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross?
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What map unit (Centimorgan) is adopted in the construction of genetic maps? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross? 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? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross? 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? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross?.
What map unit (Centimorgan) is adopted in the construction of genetic maps? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross? 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? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross? 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? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross?.
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What map unit (Centimorgan) is adopted in the construction of genetic maps? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross?, a detailed solution for What map unit (Centimorgan) is adopted in the construction of genetic maps? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross? has been provided alongside types of What map unit (Centimorgan) is adopted in the construction of genetic maps? (1) A Unit of distance between two expressed genes representing 10% cross over (2) A unit of distance between two expressed genes representing 100% cross over (3) A unit of distance between genes of chromosomes, representing 1% cross over (4) A unit of distance between genes chromosomes, representing 50% cross? theory, EduRev gives you an
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