The Discovery of PGRs

1.Four discovery were accidental one was with a planned experiment

2.Three discovery were accidental Two were with a planned experiment

3.Two discovery were accidental Three were with a planned experiment

4.All five we're accidental

Subtopic:  Growth Hormones & Auxin |
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Phototropism is firstly studied by

1.Charles Darwin and his son Francis Darwin

2.Charles Darwin and his friend Francis Darwin

3.Charles Darwin and his brother Francis Darwin

4.Charles Darwin and his colleague Francis Darwin

Subtopic:  Growth Hormones & Auxin |
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……...is the site of transmittable influence that caused the bending of the entire……..

1.Coleorrhiza

2.Coleoptile

3.Auxin

4.Scutellum

Subtopic:  Growth Hormones & Auxin |
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Auxin was isolated by

1.F. W. Went

2.Charles Darwin

3.Francis Darwin

4.F. Skoog

Subtopic:  Growth Hormones & Auxin |
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Find the wrong match.

1.F. W. Went - Oat seedlings

2.Charles Darwin - Canary Grass

3.Francis Darwin - Canary Grass

4.E. Kurosawa- Orange

Subtopic:  Gibberellin |
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This picture suggests that

1.Tip of the coleorrhiza is the source of Auxin

2.Tip of coleoptile is the source of Auxin

3.Base of coleoptile is the source of Auxin

4.Base of coleorrhiza is the source of Auxin

Subtopic:  Growth Hormones & Auxin |
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Here arrows indicate

1.Source of Auxin

2.Direction of bending

3.Direction of light

4.Direction of cap removal

Subtopic:  Growth Hormones & Auxin |
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Foolish Seedling-

Find the odd one.

1.Bakane

2.Disease of Rice seedlings

3.Caused by viral pathogen

4.Gibberella fujikuroi

Subtopic:  Gibberellin |
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E. Kurosawa

1. Reported the appearance of symptoms of the disease in rice seedlings

2. In 1926

3. Used sterile filtrates of the fungus

4. All of these

Subtopic:  Gibberellin |
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Internodal segments of tobacco stems, the callus is actually

1.An undifferentiated cell

2.A mass of differentiated cell

3.A mass of undifferentiated cell

4.A differentiated cell

Subtopic:  Growth Hormones & Auxin |
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