Question

what is genotype for a recessive trait found on the female chromosome?
○ y^h
○ x^h
○ x^h
○ y^h

Explanation:

• Females have two X chromosomes (\(XX\)) and no Y chromosomes. So options with Y (\(Y^{h}\), \(Y^{H}\)) can be eliminated as they are not relevant to female chromosomes.
• For a recessive trait on the X - chromosome, the notation for a recessive allele is in lowercase. \(X^{h}\) represents a recessive allele on the X - chromosome, while \(X^{H}\) represents a dominant allele on the X - chromosome.

Answer:

\(X^{h}\)