What is the correct order of steps of morphogenesis in Drosophila melanogaster?
a.Gap genes divide the body into broad regions
B.Establishment of anterior / posterior axes
C.Homeotic genes determine which body parts arise from each region
D.Pair-rule genes are activated in order to develop a preliminary segmentation pattern
A)b - a - d - c
B)a - d - c - b
C)b - a - c - d
D)a - b - c - d
E)a - d - b - c

Question

What is the correct order of steps of morphogenesis in Drosophila melanogaster? 
a.Gap genes divide the body into broad regions
B.Establishment of anterior / posterior axes
C.Homeotic genes determine which body parts arise from each region
D.Pair-rule genes are activated in order to develop a preliminary segmentation pattern
A)b - a - d - c
B)a - d - c - b
C)b - a - c - d
D)a - b - c - d
E)a - d - b - c

Quizplus · Accepted Answer

The correct order is: Establishment of anterior/posterior axes, Gap genes divide the body into broad regions, Pair-rule genes are activated to develop a preliminary segmentation pattern, and Homeotic genes determine which body parts arise from each region.

What Is the Correct Order of Steps of Morphogenesis in Drosophila