When drosophila flies with normal wings were crossed, the offspring of 80 individuals was obtained.

When drosophila flies with normal wings were crossed, the offspring of 80 individuals was obtained. Among them, there were 60 flies with normal wings, and the rest had rudimentary wings. Determine a) which feature is dominant; b) genotypes of parental individuals and offspring.

Given:
A-norm
a-conceived.
decision:
R: Aa x Aa
D: A, a x A, a
F1: AA (norm), Aa (norm), Aa (norm), aa (conceived)
Answer: a) dominant feature – A (norms); b) parent individuals —Aa; offspring with normal wings —Aa, AA; offspring with rudimentary wings – aa