How many genetically different gametes can an individual of genotype AaBb produce, if the genes are on different chromosomes?
Answer and explanation
Correct answer: B. Four (AB, Ab, aB and ab)
- Step 1: Gametes receive one allele of each gene. Step 2. By independent assortment A or a goes with B or b, giving types. Answer: four. Why not the others: linked genes would give two types, and gametes carry one allele per gene, not two.
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