In Drosophila, the recessive gene s, which determines the development of a shortened body, is localized

In Drosophila, the recessive gene s, which determines the development of a shortened body, is localized on the X chromosome. The dominant S gene is responsible for normal body size. A heterozygous female of normal body size is crossed with the same male. There are 38 flies in the offspring from this crossing. 1) How many types of gametes can a female form? 2) How many types of gametes can a male form? 3) How many females obtained by this crossing have normal body sizes? 4) How many of them are homozygous? 5 ) How many males have a shortened body?

Given:
normal body sizes – XS
shortened body – Xs

Decision:
P: XSXs x XSY
G: XS; Xs x XS; Y
F1: XSXS (normal body sizes)
XSXs (normal body sizes)
XSY (normal body measurements)
XsY (short body)

1) the female can form 2 types of gametes (XS; Xs)
2) the male can form 2 types of gametes (XS; Y)
3) 100% females have normal body sizes (about 30)
4) 1/3 of them are homozygous (about 10)
5) males with a shortened body 100% (about 10)