Practice question
Question
Dark grown Arabidopsis seedlings when exposed to ethylene gas shows typical triple response. Following are certain statements regarding the triple response: A. A dominant ethylene receptor mutant will not show triple response in the presence of ethylene. B. Tightening of apical hook is one of the features of triple response. C. Loss of function of multiple receptors will show triple response even in the absence of ethylene. D. Increase in hypocotyl length is a feature of triple response. Which one of the following combinations is correct?
Explanation
Analysis of dark grown arabidopsis seedlings when exposed to shows A, Band C represents established outcome. functional assays supports option A, whereas distractors confuse substrate or regulatory direction and fail to reproduce observed results.
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