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