The class of genes required for establishing the anteroposterior axis is the:
A)maternal-effect genes.
B)gap genes.
C)pair-rule genes.
D)segment polarity genes.
E)Hox genes.

Question

Quizplus · Accepted Answer

Maternal-effect genes are responsible for establishing the anteroposterior axis during early development. They are expressed in the mother's egg and help to determine the orientation and polarity of the embryo. Gap genes, pair-rule genes, segment polarity genes, and Hox genes are all involved in later stages of development, such as segment formation and patterning.

The Class of Genes Required for Establishing the Anteroposterior Axis