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
Correct Answer:
Verified
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