Question

A carrier female for colour blindness has which genotype?

Options

• XᴺXᶜ

• XᴺXᴺ

• XᴺY

• XᶜXᶜ

Answer 1

A carrier female has the genotype XᴺXᶜ, meaning she possesses one normal allele and one defective recessive allele. Although she has normal vision, she carries the recessive allele and can pass it to her offspring.