Excessive growth of hair on the pinna is a feature found only in males because

  • A

    The female sex hormone oestrogen suppresses the character in females

  • B

    The gene responsible for the character is present on the $Y-$chromosomes only

  • C

    The gene responsible for the character is recessive in females and dominant only in males

  • D

    The character is induced in males as males produce testosterone

Similar Questions

Kappa particles indicate

A recessive mutant is one which

$A$ $Y-$linked gene is responsible for hypertrichosis (long hair on ears). When an affected man marries a normal woman, what percentage of their daughters would be expected to have hairy ears?

Chromosomal theory of inheritance was proposed by

Mating among close relations is referred

  • [AIPMT 1994]