The plant hormones known as cytokinins are synthesised in the
A) shoots.
B) stems.
C) coleoptiles.
D) roots.
E) apical buds.
Correct Answer:
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Q10: Amyloplasts contain
A) auxin.
B) plastids.
C) root cap cells.
D)
Q11: The compound known as 2,4-D
A) is a
Q12: In gravitropism, the plant root bends. This
Q13: IAA produces a phototropic response in plants
A)
Q14: IAA is thought to be involved in
Q16: Synthetic growth retardants
A) reduce vegetative plant growth.
B)
Q17: In addition to stem elongation, gibberellins are
Q18: In barley, gibberellin is produced in the
Q19: Cytokinins are plant hormones that are thought
Q20: Which plant hormone is known to be
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