A Pure-Breeding Fruit Fly with Curled Wings Mates with a Pure-Breeding

Multiple Choice

A pure-breeding fruit fly with curled wings mates with a pure-breeding fruit fly with normal (straight) wings.The F₁ mate with each other to produce an F₂ generation that consists of 160 flies with curled wings and 80 with straight wings.What can you infer from this observation?

A) Curled wings is a recessive trait.
B) The dominant curled wing allele is also a recessive lethal.
C) Wing shape is controlled by two codominant alleles.
D) Two interacting genes determine wing shape.
E) All of the hybrid F₁ flies had straight wings.