Multiple Choice
The abdominal segments of Drosophila have no appendages. Loss of function of bithorax genes results in appendages forming in these abdominal segments. Therefore,_________ .
A) bithorax normally activates a gene that negatively regulates appendages in the abdomen
B) bithorax mutations are necessarily recessive
C) ultrabithorax usually acts to oppose bithorax genes
D) bithorax genes normally activate appendage- forming genes
E) expression of bithorax wild- type genes suppresses all appendage formation
Correct Answer:
Verified
Correct Answer:
Verified
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