Biology for IGCSE & O level - Inheritance (Section 1 - No. 35)
Which of the following statements are true about a carrier of a recessive genetic disorder?
They have the disorder.
They carry one copy of the recessive allele.
They can pass the allele to their offspring.
They express the phenotype of the disorder.
Explication
Carriers possess a copy of the recessive allele and can pass it on, but do not express the disorder.