Question

a mother has one allele for color blindness and one allele for normal vision. what is the probability that her gamete will have the allele for color blindness

Answer 1

The answer to your question is one half.

Answer 2

Answer: The correct answer is -

The probability that gamete of female will have the allele for color blindness is 1/2 that is half.

Explanation:

Color blindness is a X linked recessive disorder. It means that a female can only have color blindness if the gene for color blindness is carried by both the X chromosomes (that is homozygous recessive genotype) .

As per the given information in the question, mother contains one allele for color blindness and one for normal vision

This means that mother is a carrier of colorblindness.

Therefore, two different gametes produced by her are- X and $X^{c}$.

Thus, probability of gamete having allele for colorblindness is 1/2.