The vinegar fly, Drosophila melanogaster, has a gene that controls the shape of the wings. The wild-type phenotype is flat wings, but a mutation in the gene produces curled wings. You would expect
A) the wild-type phenotype to be dominant.
B) most Drosophila in natural populations to have the wild-type phenotype.
C) all Drosophila with curled wings to be homozygous.
D) all wild-type Drosophila to have the genotype +/-.
E) all wild-type Drosophila to have the genotype +/+.

Question

Quizplus · Accepted Answer

The wild-type phenotype is usually dominant, so most individuals in a population will have the wild-type phenotype.

The Vinegar Fly, Drosophila Melanogaster, Has a Gene That Controls