How does pruning help in making the hedge dense:-

1. It induces the differentiation of new shoots from the rootstock

2. It frees axillary buds from apical dominance

3. The apical Shoot grows faster after pruning

4. It releases wound hormones

Subtopic:  Growth Hormones & Auxin |
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Treatment of seed at low temperature under moist conditions to break its dormancy is called ?

1. scarification

2. vernalization

3. chelation

4. stratification

Subtopic:  Seed Dormancy |
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An enzyme that can stimulate germination of barley seeds is:-

1. α-amylase   

2. lipase

3. protease     

4. invertase

Subtopic:  Seed Dormancy |
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Difficulty Level:


The aquatic plant Limnophila has leaves of more than one shape. The condition is described as

(1) polyphylly

(2) amphiphyly

(3) heterophylly

(4) biphylly

Subtopic:  Development |
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:


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

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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

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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

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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: