Biology for IGCSE & O level - Inheritance (Section 4 - No. 43)
Which of the following are true regarding X-linked traits?
Males are more likely to express recessive X-linked traits.
Females can be carriers of recessive X-linked traits.
X-linked traits are always dominant.
The Y chromosome can carry alleles that affect the expression of the trait
Explanation
Males only have one X chromosome, so if they inherit a recessive allele on the X chromosome, they will express the trait. Females can be carriers and not express the trait if they are heterozygous.
Comments (0)
