In a hypothetical organism, structure X develops after structures A, B, and C. B
ID: 172383 • Letter: I
Question
In a hypothetical organism, structure X develops after structures A, B, and C. Biologists interested in the development of structure X remove various combinations of structures A, B, and C. Removal of structure A does not affect development of X. Removal of structure B prevents development of X. Removal of structure C does not affect development of X. Removal of both structures A and B results in X not developing.
Based on these results, we can infer that the structure(s) ______ most likely supply inducers of structure X.
A. A only
B. B only
C. C only
D. A and B
E. A and C
Explanation / Answer
Answer: B) B Only
Since removal of structure B prevents Development of X and removal of structure A doesnot affect development of X, therefore when both structures A and B are removed, the affect on the development of X would be a result of removal of B only.
Removal of structure Affect on development of X A No Effect B Prevents Development C No Effect A and B Prevents DevelopmentRelated Questions
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