A few normal seedling of tomato were kept in a dark room. After few days they were found to have become white- coloured like albions, Which of the following terms will you use to describe them ?

1. Mutated

2. Embolised

3. Etiolated

4. Defoliated

Subtopic:  Development |
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Which one of the following growth regulators is known as stress hormone ?

1. Abscissic acid

2. Ethylene

3. GA3

4. Indole acetic acid

Subtopic:  Abscisic Acid |
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During seed germination its stored food is mobilized by

1. Cytokinin

2. ABA

3. Gibberellin

4. Ethylene

Subtopic:  Gibberellin |
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Phototropic curvature is the result of uneven distribution of

1. gibberellin

2. phytochrome

3. cytokinins

4. auxin

Subtopic:  Growth Hormones & Auxin |
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Photoperiodism was first characterized in

1. tobacco

2. potato

3. tomato

4. cotton

Subtopic:  Photoperiodism |
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Coiling of garden pea tendrils around any support is an example of

1. thigmotaxis

2. thigmonasty

3. thigmotropism

4. thermotaxis

Subtopic:  Growth | Development |
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One of the synthetic auxin is

1. NAA

2. IAA

3. GA

4. IBA

Subtopic:  Growth Hormones & Auxin | Auxin Function |
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Which one of the following acids is a derivative of carotenoids?

1. Indole-butyric acid

2. Indole-3-acetic acid

3. Gibberellic acid

4. Abscisic acid`

Subtopic:  Abscisic Acid |
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Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in

1.  vessels and tracheid differentiation

2.  leaf abscission

3.  annual plants

4.  floral parts.

Subtopic:  Auxin Function | Cytokinin | Ethylene | Abscisic Acid |
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The opening of floral buds into flowers is a type of:

1. autonomic movement of locomotion

2. autonomic movement of variation

3. paratonic movement of growth

4. autonomic movement of growth

Subtopic:  Growth Terminology | Development |
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