Biology for IGCSE & O level - Inheritance (Section 4 - No. 29)
What does the term 'carrier' mean in the context of human genetics?
Someone affected by the disease
Someone who has the dominant allele.
Someone who is heterozygous for a recessive allele.
Someone who is homozygous for a recessive allele.
คำอธิบาย
A carrier is heterozygous, and does not express the disease, but carries the recessive allele.