The diagram illustrates a family in which some individuals have a disease caused by a recessive allele. Which two family members must be heterozygous for the gene?
- A5 and 7
- B3 and 6
- C2 and 5
- D1 and 4
Biology 5090 · O Level · Inheritance
Biology 5090 · O Level · Inheritance
The diagram illustrates a family in which some individuals have a disease caused by a recessive allele. Which two family members must be heterozygous for the gene?