Recently, it has been discovered that both auxin and gibberellins have specific protein receptors which, when bound by hormone,
A) inactivate certain gene repressors in the nucleus.
B) activate certain gene repressors in the nucleus.
C) initiate a protein kinase cascade.
D) activate protein pumps in the plasma membrane.
E) acidify the cell wall.
Correct Answer:
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Q48: The two-component cytokinin signal transduction pathway in
Q49: Treatment of some plants with gibberellins or
Q50: Gravitropism is the phenomenon by which a
Q50: After a few days, a houseplant that
Q51: Auxin transport goes
A) from apex to base.
B)
Q52: Auxins are plant hormones that affect
A) root
Q54: Leaf abscission is the
A) separation of leaves
Q55: What is the difference between the cytokinins
Q56: A cell wall is a network of
Q58: Auxins cause elongation by
A) triggering proton release.
B)
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