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Introduction to Genetics

Hairy pinna/h...

Question

Hairy pinna/hypertrichosis in certain human males is controlled by.

A

Holandric gene

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B

Sex hormone

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C

X-chromosome

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D

Autosome

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Solution

The correct option is A Holandric gene
Holandric genes that are carried on the Y chromosome.
Holandric genes can only be passed by males onto their sons and Hypertrichosis pinnae is a Y-linked character. So, option A is correct

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