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NEET 2019, Biology Q32: Linkage and Crossing over

NEET2019Paper 2019Biology
Q.

What map unit (Centimorgan) is adopted in the construction of genetic maps?

  1. A

    A unit of distance between two expressed genes representing 10% cross over.

  2. B

    A unit of distance between two expressed genes representing 100% cross over.

  3. C

    A unit of distance between genes on chromosomes, representing 1% cross over.

  4. D

    A unit of distance between genes on chromosomes, representing 50% cross over.

Solution

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.

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