Human 'Y' chromosome contains _______ genes.

50,000

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10,000

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200

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Indefinite number

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Solution

The correct option is B 200
The Y chromosome is one of two sex chromosomes in mammals which contains the gene SRY and triggers testis development. Human Y chromosome DNA is composed of about 59 million base pairs with around 200 genes. Y chromosome has been shrinking throughout evolution but is supposed to become stable now as all Y-linked genes are indispensable for survival.

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