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The expression of Holandric genes causes the following genetic trait ______________

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The expression of Holandric genes causes the following genetic trait ______________

(a) Haemophilia

(b) Huntington’s disease

(c) Down’s syndrome

(d) Hypertrichosis

This question was posed to me in an interview for internship.

Question is from Genes, Chromosomes and Genomes topic in division Bioenergetics, Enzymes, Metabolism, Genes, Chromosomes and Genomes of Cell Biology

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Correct option is (d) Hypertrichosis

The explanation: Genes that are Y linked are called Holandric genes. Conditions such as Hypertrichosis(which is excessive growth of hair) and colour blindness(inability to see and perceive colour) are Y linked disorders, that is they are only inherited by males.

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