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patriot [66]
3 years ago
5

Why would a man have an extra Y chromosome ​

Biology
1 answer:
zhuklara [117]3 years ago
7 0

Answer:

Males with XYY syndrome have 47 chromosomes, two of which are Y chromosomes. Most cases of XYY syndrome are due to a cell division error in the sperm prior to conception. Rarely, the cell division error occurs after conception resulting in a mosiac of cells with 46 chromosomes and 47 chromosomes.

Explanation:

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