Practice question

MCQ

Question

Following are certain statements regarding phytochrome interacting factors(PIFs), a family of proteins that regulates photomorphogenic response inplants: A. PIFs promote skotomorphogenesis by serving as transcriptional activatorsof dark induced genes. B. PIFs on interaction with Pr get phosphorylated, followed by degradationvia the proteasome complex. C. The degradation of PIFs takes place in the presence of light. D. PIF-induced genes are not expressed in light. Which one of the following options represents the combination of correct statements ?

Options

Choose one · Correct answer highlighted

A, B and C A, C and D Correct A, B and D B, C and D

Explanation

Analysis of following are certain statements regarding phytochrome interacting shows A, C and D represents established outcome. functional assays supports option B, whereas distractors confuse substrate or regulatory direction and fail to reproduce observed results.

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