Vernalization is the process of

1. flower induction by high temperature treatment

2. inhabitation of flowering by low temperature treatment

3. flower induction by light treatment

4. acceleration of the ability of a plant to produce flowers by chilling treatment

Subtopic:  Vernalization |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Parthenocarpy in grapes is induced by:-

1. cytokinins

2. gibberellins

3. topoisomerases

4. primase

Subtopic:  Growth Hormones & Auxin |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Phytochromes play a role in 

(1) seed germination

(2) flowering 

(3) photomorphogenesis

(4) photosynthesis.

Subtopic:  Photoperiodism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Induction of flowering by low temperature in plants is 

1. cryobiology

2. vernalization 

3. phototropism

4. pruning.

Subtopic:  Vernalization |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Which of the following statements is correct regarding short day plants (SDPs)?

1. They can flower in complete darkness if supplied with exogenous nutrients.

2. They are the same as long day plants.

3. They do not have a critical photoperiod.

4. All of these.

Subtopic:  Photoperiodism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Bud dormancy is induced by:-

1. ABA

2. ethylene

3. IAA

4. gibberellic acid.

Subtopic:  Abscisic Acid |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Pruning of plants promotes branching because the auxillary buds get sensitized to:-

1. ethylene

2. gibberellin

3. cytokinin

4. indole acetic acid

Subtopic:  Growth Hormones & Auxin |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Phytohormones are?
(1) hormones regulating growth from seed to adulthood

(2) growth regulators synthesised by plants and influencing physiological process

(3) hormones regulating flowering

(4) hormones regulating secondary growth

Subtopic:  Growth Hormones & Auxin |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Refer the given figures on photoperiodism and select the correct option.


Subtopic:  Photoperiodism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Abscisic acid is known as the stress hormone because it

(1) breaks seed dormancy

(2) induces flowering

(3) promotes leaf fall

(4) promotes closure of stomata

Subtopic:  Abscisic Acid |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: