In combination,what do the products of gap genes,pair-rule genes,and segmentation polarity genes of fruit flies do?
A)They trigger the reorganization of the larval body into an adult body.
B)They define the segmented body plan of the embryo.
C)They set up the back-to-belly axis of the larval body.
D)They direct cell movements during differentiation.

Question

Quizplus · Accepted Answer

The products of gap genes, pair-rule genes, and segmentation polarity genes work together to define the segmented body plan of the Drosophila embryo. Gap genes establish broad regions of the embryo, pair-rule genes divide these regions into alternating segments, and segmentation polarity genes determine segment polarity and organize segments in the anterior-posterior axis. This process sets up the basic body plan of the developing fruit fly embryo.

In Combination,what Do the Products of Gap Genes,pair-Rule Genes,and Segmentation