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Biology · PYQ NEET UG 2019(1)

हिन्दी

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

  1. A unit of distance between two expressed genes on chromosomes, representing 1% cross over.
  2. A unit of distance between genes on chromosomes, representing 50% cross over.
  3. A unit of distance between two expressed genes, representing 10% cross over.
  4. A unit of distance between two expressed genes, representing 100% cross over.

Correct answer · Option 1

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

Explanation

One centimorgan (cM) corresponds to a 1% recombination frequency (crossing over) between two linked genes on a chromosome.
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