If a scientist discovers an Arabidopsis mutant that does not store starch in plastids but has normal gravitropic bending, what aspect of our understanding would need to be reevaluated?
A)the role of auxin in gravitropism
B)the role of calcium in gravitropism
C)the role of statoliths in gravitropism
D)the role of light in gravitropism
E)the role of differential growth in gravitropic bending

Question

Quizplus · Accepted Answer

Statoliths are thought to play a key role in gravity perception and gravitropic bending in plants. If a mutant does not store starch in plastids but still exhibits normal gravitropic bending, it may suggest that starch storage in plastids is not essential for statolith function or that there may be other mechanisms involved in gravity perception and gravitropic bending. This would require a reevaluation of our understanding of the role of statoliths in gravitropism.

If a Scientist Discovers an Arabidopsis Mutant That Does Not