5. Birds have a ZW sex determination system where a male is ZZ and a female is ZW, essentially the opposite of humans.
a. In birds who determines the sex of the offspring?
b. Feather coloration is a sex-linked trait where barred feathers are dominant over non-barred
feathers. Draw a punnett square showing a cross between a barred female and a non-barred
male.
c. Genotypic ratio
d. Phenotypic ratio

Plz help! I don’t understand, ty for your time!