16. You are studying a species of fruit fly, Drosophila mitensis, and you find a fly that has cut wings as seen here (use “w+” as wild type allele and “cut” as cut wings allele):

Question

The normal F1 female progeny from the cross in (a) were crossed to the normal F1 males. The resulting F2 progeny were:
1/2 normal females
1/4 normal males
1/4 cut-wing males

What is the mode of inheritance of cut wing, and what were the genotypes of the following? (8 marks)
Parents ________
F1 ________
F2 _______

Answer 1

Parents: w+/w+
F1: w+/cut
F2: 1/2 w+/w+, 1/4 w+/cut, 1/4 cut/cut

Mode of inheritance of cut wing: Recessive