Gibberlin

Q.

Assertion (A): Genetically dwarf plants on treatment with gibberellins attain the size of normal plants

Reason(R): Gibberellins cause enormous cell elongation and intermodal length

1. Both A $\&$ R are true and R explains A

2. Both A $\&$ R true and R does not explain A

3. A is true and R is false

4. Both A $\&$ R are false

Q.

What happens in the synthesis and activation of the enzyme stage of germination?

Q.

Which one of the following hormones causes dwarf bean plants to grow tall?

1. Ethylene
2. Gibberellin
3. Auxin
4. Cytokinin

Q.

Which one of the following pairs is correctly matched?

1. Auxin – abscission

2. Gibberellin – internodal elongation

3. Cytokinin – fruit ripening

4. Ethylene – apical dominance

Q.

Which of the following plant hormones is commonly used to produce seedless fruits?

1. Gibberellin

2. Ethylene

3. Auxin

4. ABA

Q.

Which plant hormone helps in breaking seed dormancy?

1. Gibberellin

2. Cytokinin

3. Auxin

4. Ethylene

Q.

Which of the following hormones stimulate parthenocarpy?

1. Auxin

2. Ethylene

3. Gibberellin

4. Abscisic acid

Q.

How does gibberellin accelerate seed germination?

1. By producing ethylene

2. By the production of enzymes which break down the stored food

3. By absorbing water resulting in the swelling of seeds

4. By producing abscisic acid

Q.

Which of the following hormones stimulate parthenocarpy?

1. Auxin

2. Ethylene

3. Gibberellin

4. Abscisic acid

Q.

Which of the following plant hormones is commonly used to produce seedless fruits?

1. Auxin

2. Gibberellin

3. ABA

4. Ethylene

Q.

Which one of the following hormones causes dwarf bean plants to grow tall?

1. Auxin

2. Cytokinin

3. Gibberellin

4. Ethylene

Q.

How does gibberellin accelerate seed germination?

1. By the production of enzymes which break down the stored food

2. By producing ethylene

3. By absorbing water resulting in the swelling of seeds

4. By producing abscisic acid