Question

Mrs. Verma has an autosomal gene pair "Bb" and she contain x-linked gene "d". What is the percentage of gamete, which contain "bd" gene ?

• A. 50 %
• B. 25 %
• C. 75 %
• D. 100 %

Answer 1

The correct option is A 50 %

According to question, Mrs Verma has an autosomal gene pair 'Bb' and she contains a x-linked gene 'd'.

Sex chromosome of human female = XX

Here, 'd' is a X-linked gene and the human female contains two X chromosome. Hence, the chances of gametes that contain Bd genes will be 50% or 1/2 and bd will also be 50% or 1/2.

So, the correct answer is "option A".