Which of the following are maternal effect genes that control the orientation of the egg and thus the Drosophila embryo?
A) homeotic genes
B) segmentation genes
C) egg-polarity genes
D) morphogens
E) inducers

Question

Quizplus · Accepted Answer

Egg-polarity genes control the orientation of the egg and thus determine the polarity of the embryo. Maternal effect genes are genes whose expression in the mother directly determines a phenotype in the offspring, and egg-polarity genes are an example of these types of genes. Homeotic genes, segmentation genes, morphogens, and inducers are not maternal effect genes that control the orientation of the egg.

Which of the Following Are Maternal Effect Genes That Control