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Sidana [21]
3 years ago
12

Explain how a genetic map (in map units) is related to actual physical distance (in base pairs of DNA).

Biology
1 answer:
antiseptic1488 [7]3 years ago
6 0

Explanation:

A map unit [or centimorgan (cM)] is a unit for measuring genetic linkage. It is defined as the distance between chromosome positions for which the expected average number of intervening chromosomal crossovers in a single generation is 0.01. <em>Its relation with actual physical distances is inconsistent </em>because the number of base pairs to which it corresponds varies widely across the genome, it also depends on whether the meiosis in which the crossing-over takes place is a part of male or female genes (female genome is 4782 cM long, while the male genome is only 2809 cM long).

I hope you find this information useful. Good luck!

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