Question

Question #64b2c

Answer 1

AAbb will have only 1 gamete - Ab.
Whereas AaBb will have 4 - Ab, ab, AB, aB.

Explanation:

An easy formula is `2^n` , where n is the number of different alleles for each gene.
In above question, the first person has 0 different alleles, and thus 1 gamete.
The second person has 2 different alleles for gene a and b, so `2^2 = 4` and produces 4 types of gametes.