Q.

Which of the following statements is not related to the ‘Y’ chromosome of human?

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a

It has 231 genes.

b

It has no gene for colour vision.

c

It determines male sex.

d

Its absence causes Klinefelter syndrome.

answer is D.

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Detailed Solution

Klinefelter’s Syndrome  is a genetic disorder caused due to the presence of an additional copy of X chromosome resulting into a karyotype of 47, XXY.

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