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Gibberellin

Gibberellin i...

Question

Gibberellin is helpful in .....................

A

Elongation of plants

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B

Inducing dwarfism

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C

Fat hydrolysis

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D

Protein synthesis

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Solution

The correct option is A Elongation of plants
GA induces the division of lateral meristem and thus results in the elongation of plant. It has several other important functions like cell elongation, bolting, overcoming seed dormancy, etc.

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Q. Which statements are correct?

a

- Cytokinins suppress the synthesis of chlorophyll

b

- Auxins control apical dominance

c

- Gibberellins promote shoot elongation

d

- Abscisic acid enables seeds to with-stand desication.

Q. Gibberellin promotes cell elongation and division in

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Q. The dwarf variety of garden pea plants are now known to have a mutation in a gene needed for synthesis of gibberellin.

F_{1}

plant obtained by Mendel from the tall (TT)

\times

dwarf (tt) cross were tall.
Which of the following inferences can be drawn from the given information?
(i) Gibberellin causes elongation of stems.
(ii) Heterozygous (Tt) plants produce the same amount of gibberellin as homozygous dominant (TT) plants.
(iii) Gibberellin induces production of auxin.
(iv) Mutation may have occurred in a gene producing an enzyme.

Q. Gibberellins induce __ by stimulating cell elongation

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