Biology for IGCSE & O level - Inheritance (Section 11 - No. 24)
In a cross between a homozygous dominant individual and a homozygous recessive individual for a single trait, what is the genotypic ratio of the offspring?
1:1
3:1
1:2:1
4:0
คำอธิบาย
All offspring will be heterozygous (Aa).