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← Nature & AnimalsWhich outcome is observed when ecdysone secretion inappropriately triggers growth factor signaling among insect imaginal discs?
A)Programmed cell death is inappropriately suppressed
B)Segment identity exhibits homeotic transformation✓
C)Local cellular differentiation accelerates abnormally
D)Adult appendages fail to fully elongate
💡 Explanation
Homeotic transformations occur because altered ecdysone secretion during larval stages leads imaginal discs to misinterpret positional information via changed Hox gene expression, therefore segment identity changes to match inappropriate regions, rather than correct development of appendages.
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