Multiple Choice
Refer to the figure showing moth metamorphosis. 
If you experimentally block prothoracicotropic hormone (PTTH) in the fifth-instar larva, and then inject the larva with hormones, what hormone(s) would be both necessary and sufficient to trigger the larva to pupate?
A) Juvenile hormone
B) Juvenile hormone and prothoracicotropic hormone
C) Ecdysone
D) Ecdysone and juvenile hormone
E) Ecdysone and prothoracicotropic hormone
Correct Answer:
Verified
Correct Answer:
Verified
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