Phototropism of stem and root are due to [MP PMT 1989] – McqOptions

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1.	Phototropism of stem and root are due to [MP PMT 1989]
A.	Differential hormonal effect
B.	Epinasty and hyponasty
C.	Effect of light
D.	Graviperception
Answer» B. Epinasty and hyponasty

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