In fruit flies, the following genes are used to determine segment polarity: (k) gap genes; (l) Hox genes; (m) maternal effect genes; (n) pair rule genes. In what order are these genes expressed during development?
A) k, l, m, n
B) l, k, n, m
C) m, k, n, l
D) n, k, m, l
E) n, m, k, l

Question

Quizplus · Accepted Answer

Maternal effect genes are expressed first, followed by gap genes, then pair rule genes, and finally Hox genes.

In Fruit Flies, the Following Genes Are Used to Determine