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

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

Question 2

Pr is located in the ____, and after it absorbs red light, the resulting Pfr moves to the ____.
  a. endoplasmic reticulum; plasma membrane
  b. cytoplasm; nucleus
  c. plasma membrane; cytoplasm
  d. cytoplasm; plasma membrane
  e. nucleus; cytoplasm