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
Correct Answer:

Verified
Correct Answer:
Verified
Q36: The effect of red light on plants
Q37: Which of the following statements about plant
Q38: When cytokinins are sprayed on leaves of
Q39: Match the plant hormone with its description.
Q40: Auxin produced by the apical meristem inhibits
Q42: Match the plant hormone with its description.
Q43: Unripe green fruits ripen quickly in supermarkets
Q44: When a root is placed on its
Q45: Summarize the hypersensitive response and system-acquired resistance,
Q46: The most common and physiologically important auxin