In the summer squash, the allele for white fruit (F) is dominant over the allele for yellow fruit (f). Likewise, the allele for disc-shaped (D) fruit is dominant over the allele for sphere-shaped (d) fruit. Please note that the gene for fruit color is on chromosome 2 and the gene for fruit shape is on chromosome 11. Parents: FdDd x FdDd

Select the gamete combination(s) donated by the parent 2.

a. FF
b. FD
c. Dd
d. Fd
e. Ft
f. fd
g. fD
h. dd
i. FfDd

b. FD

d. Fd

c. Dd

h. dd

Explanation:

From the given information:

We are given a dihybrid cross that comprises two traits. The crossing exists between two heterozygous white disc-shaped traits i.e. FdDd.

If the parent self crossed, the gamete combinations for the F1 generation are:

        F      d

D     FD   Dd

d     Fd     dd

Therefore, the gametes combinations are four potential and feasible combinations of FdDd that can enter into the Filial generation crossing.

d

explanation: