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Role of Abscisic Acid

Auxin induces...

Question

Auxin induces apical dominance which is supression of apical buds.

A

True

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B

False

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Solution

The correct option is B
False

Auxin is responsible for apical dominance in plants. Apical dominance is the supression of growth of lateral buds. This promotes the growth of apical buds.

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Q. Assertion :Suppression of growth of auxillary buds is called apical dominance. Reason: It is due to effect of downward movement of Auxin from apical region towards the lower side.

Q. Assertion :Auxin promote apical dominance by suppressing the activity of lateral buds. Reason: In moriculture periodic pruning of shoot tips is done to make mulberry plants bushy.

Q. I. Assertion: The presence of apical bud inhibits the growth of lateral bud, this is called apical dominance.
II. Reason: Auxin is responsible for apical dominance.

Q. Compare the statement A with B. Statement A: Auxins produce apical dominance by suppressing the activity of lateral buds. Statement B: In horticulture, periodic pruning of shoot tips is done to make mulberry plants bushy.

The phenomenon of suppression of lateral buds by apical buds is called ______

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Role of Abscisic Acid

Standard XII Biology

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