Question

In fruit flies, the allele for vestigial wings is recessive to the allele for normal wings. In a generation of fruit flies, 18 males and 15 females with vestigial wings are produced, and 43 males and 44 females with normal wings are produced. Which of the following is the best conclusion you can make about the parents of this generation? (2 points)

Select one:
a. Both parents were heterozygous for wing type.
b. One parent was heterozygous for wing type and the other was homozygous with normal wings.
c. Both parents were homozygous with normal wings.
d. One parent had vestigial wings and the other was heterozygous for wing type.


Please help!!

Answer 1

A.

Because according to the punnett square, 75% of the flies would have normal wings, while 25% of the flies would have vestigial wings.

And since there were a total of 120 flies (18 + 15 + 43 + 44),

of which 33 flies (18 + 15) had vestigial wings,

and 87 flies (43 + 44) had normal wings,

thats approximately 25% vestigial and 75% normal.

Answer 2

I Believe that the answer is (A)both parents were heterozygous for wing type