Question

Holandric genes are located

• A. both in X and Y-chromosome
• B. only in Y-chromosome
• C. only in X-chromosome
• D. only in autosomes

Answer 1

Answer: (B)

only in Y-chromosome

Answer 2

Holandric genes are the $Y$-linked genes. The $Y$-linked type sex-linked inheritance is performed by those genes which are localised in the non-homologous sections of $Y$-chromosome and that have no alleles in $X$-chromosome.