Question

A gene located on Y-chromosome and therefore, transmitted from father to son is known as

• A. Supplementary gene
• B. Complementary gene
• C. Duplicate gene
• D. Holandric gene

Answer 1

The correct option is D Holandric gene

A. Supplementary genes are two independent dominant gene pairs which interact in such a way that one dominant gene produces its effect irrespective of the presence or absence of other.

B. Complementary genes are two pairs of non-allelic dominant genes, which interact to produce only one phenotypic trait, but neither of them produces the trait in the absence of other.

C. Duplicate genes are the two pair of genes, which determine same or nearly same phenotype.

D. Holandric genes are the genes that are present on Y-chromosome and are carried from father to son.

So, the correct answer is 'Holandric gene'.