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NEET Practice Questions (MCQs) with Answers & Solutions

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All Physics Chemistry Botany Zoology

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Vernalisation

A. Disables the plant to have fruits B. Enables the plants to have fruits C. Enables the plants to have sufficient time to reach maturity D. Brings senescence

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Explanation

Page number-252

15.6 Vernalisation

Plant Growth and Development

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Vernalisation refers to

A. The promotion of flowering by a period of high temperature B. The inhibition of flowering by a period of low temperature C. The promotion of flowering by a period of low temperature D. The inhibition of flowering by a period of high temperature

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Explanation

Page number-252

15.6 Vernalisation

Plant Growth and Development

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Which of the following does not has two kinds of varieties?

A. Wheat B. Radish C. Barley D. Rye

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Explanation

Page number-252

15.6 Vernalisation

Plant Growth and Development

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The spring varieties are normally planted in…...and come to flower and produce grain……

A. Autumn season, after the end of growing season B. Spring season, at the end of growing season C. Spring season, before the end of growing season D. Autumn season, at the end of growing season

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Explanation

Page number-252

15.6 Vernalisation

Plant Growth and Development

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Which of the following is not a reason of seed being dormant?

A. Impermeable and hard seed coat B. ABA C. Phenolic Acids, Para Ascorbic Acid D. External temperature

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Explanation

Page number-252

15.7 Seed Dormancy

Plant Growth and Development

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Seed Dormancy

Find the incorrect statement.

A. Can be caused by immature embryos B. Can be overcome by natural means and various other man made measures C. ABA has no effects over seed Dormancy D. GA can overcome seed Dormancy

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Explanation

Page number-253

15.7 Seed Dormancy

Plant Growth and Development

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Which of the following cannot overcome seed Dormancy?

A. GA B. Nitrates C. Changes in environmental Conditions D. Phenolic Acids

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Explanation

Page number-253

15.7 Seed Dormancy

Plant Growth and Development

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Seed coat barrier in some seeds cannot be broken by

A. Vigorous shaking B. Mechanical abrasions using knives, sandpaper C. Chilling conditions D. Microbial action

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Explanation

Page number-253

15.7 Seed Dormancy

Plant Growth and Development

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Effect of inhibitory substances cannot be removed by…..in order to overcome seed Dormancy.

A. Chilling conditions B. Application of GA C. Application of Nitrates D. Application of Para-ascorbic acid

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Explanation

Page number-253

15.7 Seed Dormancy

Plant Growth and Development

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Which of the following is not a natural mean to remove seed coat?

A. Microbial action B. Passage through Digestive tract C. Vigorous shaking D. Both B and C

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Explanation

Page number-253

15.7 Seed Dormancy

Plant Growth and Development

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