Some fruit flies are born with curly wings which makes them unable to fly. It has been shown that curly wings are caused by a dominant gene which can be represented by the symbol W, while the recessive normal wing gene is represented by the symbol w. If a parent fly with the genotype WW is crossed with a parent of the genotype Ww, what percentage the offspring will have curly wings?
Responses
A 100%100%
B 75%75%
C 50%50%
D 25%
The genotype of the parent fly with the genotype WW is homozygous dominant, meaning it has two copies of the curly wing gene. The genotype of the other parent fly with the genotype Ww is heterozygous, meaning it has one copy of the curly wing gene and one copy of the normal wing gene.
When these two parents are crossed, their offspring will inherit one gene from each parent. There are two possible combinations for the offspring's genotype: WW or Ww.
The WW genotype will result in curly wings, while the Ww genotype will result in normal wings.
Therefore, 50% of the offspring will have curly wings (WW genotype) and 50% will have normal wings (Ww genotype).
The correct answer is C) 50%50%.