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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NEET 2021 - Achiever Batch - Aryan Raj Singh

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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 |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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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 |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

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Parthenocarpy in grapes is induced by:-

1. cytokinins

2. gibberellins

3. topoisomerases

4. primase

Subtopic:  Growth Hormones & Auxin |
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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Phytochromes play a role in 

(1) seed germination

(2) flowering 

(3) photomorphogenesis

(4) photosynthesis.

Subtopic:  Photoperiodism |
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NEET 2021 - Achiever 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 |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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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 |
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Bud dormancy is induced by:-

1. ABA

2. ethylene

3. IAA

4. gibberellic acid.

Subtopic:  Abscisic Acid |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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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 |
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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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 |
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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