Gene for hypertrichosis(having pinna) is present on x or y chromosome
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No, the X and Y chromosomes decides the sex of the child that weather it will be a or a boy.
Other 22 chromosomes decide the shape of pinna, eye color, hair color etc.
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Answer:Genes for hypertrichosis is not present on x or y chromosomes. As we have 23 pairs of chromosome,the x and y chromosome only decides the sex of an individual. And the rest 22 pairs of chromosome decides the eye colour, colour of our body, hair colour,and ear pinna,etc.
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