The chemical natural of gibberellins is

1.  Acidic

2.  Alkaline  

3.  Proteinaceous

4.  Amines

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4
Correct Answer :

Acidic


Explanation :
No Explanation available for this question

RNA has uracil instead of

1.  Cytosine

2.  Guanine

3.  Thymine

4.  All of these.

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4
Correct Answer :

Thymine


Explanation :
No Explanation available for this question

Which is function of pseudopodia besides locomotion in Amoeba

1.  Excretion

2.  Regeneration

3.  Reproduction

4.  Engulfing various materials.

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4
Correct Answer :

Engulfing various materials.


Explanation :
No Explanation available for this question

Which base is present in RNA but not in DNA

1.  Cytosine

2.  Guanine

3.  Thymine

4.   Uracil.

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4
Correct Answer :

Uracil.


Explanation :
No Explanation available for this question

H. G. Khorana was awarded Nobel prize for

1.  Discovering DNA

2.  Discovering RNA

3.  Discovering DNA polymerase

4.  Chemical synthesis of gene

View Answer  
4
Correct Answer :

Chemical synthesis of gene


Explanation :
No Explanation available for this question

One hormone helps in ripening of fruits, while the other stimulates closure of stomata. These are respectively

1.  abscisic acid and auxin

2.  ethylene and abscisic acid

3.  auxin and ethylene

4.  ethylene and gibberellic acid

5.  gibberellic acid and abscisic acid

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5
Correct Answer :

ethylene and abscisic acid


Explanation :
No Explanation available for this question

Match the column I and column II and select the correct option. Column I Column II A.Auxin 1.Herring sperm DNA B.Cytokinin 2.Inhibitor of growth C.Gibberellin 3.apical dominance D.Ethylene 4.Epinasty E.abscisic acid 5.Induce amylase synthesis

1.  3    1   5    2    2

2.  4    5   1    3    2

3.  2    1   5    3    4

4.  3    1   5    2    4

5.  4    1   5    3    2

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5
Correct Answer :

3    1   5    2    2


Explanation :
No Explanation available for this question

Identify the pair of physiological effects of two phytohormones, which are synthesized from different amino acid I. Formation of perennating buds in Lemma II. Simultaneous flowering in pineapple III. Bolting in cabbage IV. Apical dominance in polyalthia

1.  II and IV

2.  I and IV

3.  II and III

4.  I and II

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4
Correct Answer :

II and III


Explanation :
No Explanation available for this question

Identify two of the following phytohormones, which regulate the stomatal movements I. IAA II. GA3 III. zeatin IV. ABA

1.  I and III

2.  II and III

3.  III and IV

4.  II and IV

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4
Correct Answer :

III and IV


Explanation :
No Explanation available for this question

Which plant hormone promotes seed dormancy, bud dormancy and causes stomatal closure

1.  IAA

2.  Abscisic acid

3.  GA

4.  Cytokinin

View Answer  
4
Correct Answer :

Abscisic acid


Explanation :
No Explanation available for this question
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