What is necessary for ripening of fruits:
1.  80% of ethylene
2.  Abscisic acid
3.  2, 4 D
4.  A.M.O. – 16

Subtopic:  Ethylene |
 95%
From NCERT
AIPMT - 1998
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NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following induces morphogenesis in tissue culture:
1.  Gibberellin
2.  Cytokinin
3.  IAA
4.  Ethylene

Subtopic:  Cytokinin |
 66%
AIPMT - 1998
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Which weedicide can defoliate the complete forest:
1.  2, 4-D
2.  AMO–1618
3.  MH
4.  ABA

Subtopic:  Auxin Function |
 91%
AIPMT - 1998
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Agent orange is:
1.  Biodegradable insecticide
2.  Di auxin (2–4,D and 2, 4, 5 T) weedicide
3.  Biofertilizer
4.  Biopesticide

Subtopic:  Auxin Function |
 84%
AIPMT - 1998
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Effect of light and dark rhythm on plants is known as:
1.  Photonasty
2.  Phototropism
3.  Photoperiodism
4.  Photomorphogenesis

Subtopic:  Photoperiodism (OLD NCERT) |
 89%
From NCERT
AIPMT - 1998
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NEET 2023 - Target Batch - Aryan Raj Singh

Growth of leaf primordia is:
1. First apical then marginal
2. Only apical
3. Only marginal
4. Lateral

Subtopic:  Development |
 66%
AIPMT - 1998
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What is a phytotron:
1.  A device to grow the plants in a controlled environment
2.  Growing plants in greenhouse
3.  Radiation chamber to induce the mutations
4.  Apparatus to study the effect of light on plants

Subtopic:  Development |
AIPMT - 1999
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Exponential growth is shown by:
1.  Unicellular forms
2.  A cell in tissue culture
3.  Embryo
4.  Multicellular plants

Subtopic:  Growth |
 58%
AIPMT - 1999
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If the apical bud has been removed then we observe:

1. More lateral branches

2. More axillary buds

3. Plant growth stops

4. Flowering stops

Subtopic:  Auxin Function |
 77%
From NCERT
AIPMT - 2000
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NEET 2023 - Target Batch - Aryan Raj Singh

Which hormone is responsible for fruit ripening:

1. Ethylene

2. Auxin

3. Ethyl chloride

4. Cytokinin

Subtopic:  Ethylene |
 95%
From NCERT
AIPMT - 2000
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh