Which of the following is NOT a component of the signal transduction pathway involved in the detonation process when a shoot breaks ground?
a. reception of light by a phytochrome located in the cytosol.
b. inhibition of the triple response and invitation of phototropism as the shoot bends toward light.
c.production of second messengers such as cGMP and Ca +2
d. cascades of protein kinase activations that phosphorylate transcription factors.
e. activation of genes that code for photosynthesis-related enzymes.
Answer:B