Which of the following mutant Drosophila phenotypes resulted from a mutation in a maternal gene?
A) An embryo with half the normal number of body segments
B) An embryo that lacks several abdominal segments
C) An embryo without head segments
D) Mutants with antennae attached to the posterior
E) An embryo with a pair of legs instead of antennae attached to the head

Question

Quizplus · Accepted Answer

Maternal effect genes in Drosophila, such as bicoid, are responsible for establishing the anterior-posterior axis. A mutation in such a gene can result in an embryo without head segments.

Which of the Following Mutant Drosophila Phenotypes Resulted from a Mutation