Suppose the pair-rule genes were inactivated in Drosophila embryos. What is the likely result of the experiment?
A) The embryos would develop normally.
B) The embryos would lack several segments.
C) The embryos would have impaired anterior-posterior polarity.
D) The embryos would have missing alternate segments.

Question

Quizplus · Accepted Answer

Pair-rule genes are responsible for establishing the segmented body plan of Drosophila embryos. Inactivation of these genes typically results in the loss of alternate segments, leading to a pattern where every other segment is missing.

Suppose the Pair-Rule Genes Were Inactivated in Drosophila Embryos