Which of the Following Sequences Correctly Represents the Phytochrome Signal

question 41

Multiple Choice

Which of the following sequences correctly represents the phytochrome signal transduction pathway?

• A) Red light → PIF3 activation → PIF3 into nucleus → light-responsive gene switched off
• B) Red light → Pfr to Pr → Pr into nucleus → Pr-PIF3 complex → light-responsive gene regulation
• C) UV light → PIF3 into nucleus → light responsive gene produces phytochrome → Pr to Pfr
• D) Blue light → Pfr into nucleus → Pfr-PIF3 complex → light-responsive gene regulation
• E) Red light → Pr to Pfr → Pfr into nucleus → Pfr-PIF3 complex → light-responsive gene regulation

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