Suppose that a plan has two genes that are linked with Ab on one homolog of a homologous pair o chromosomes and aB on the other homolog. what gametes could the plan produce if crossing-over occurred between these gees during meiosis?
a) Ab and aB only
b) AB and ab only
c) Aa and Bb only
d) Ab, aB, AB, and ab only
e) Ab, aB, AB, ab, Aa, and Bb only