High concentration of auxin is present in:

1.  Root apex

2.  Shoot apex

3.  Petiole

4.  Node

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4
Correct Answer :

Shoot apex


Explanation :
No Explanation available for this question

Which breaks dormancy of potato tuber

1.  Gibberellins

2.  IAA

3.  ABA

4.  Zeatin

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4
Correct Answer :

Gibberellins


Explanation :
No Explanation available for this question

Hormone responsible for senescence is:

1.  ABA

2.  Auxin

3.  GA

4.  Cytokinin

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4
Correct Answer :

ABA


Explanation :
No Explanation available for this question

Which of the following prevents the fall of fruits

1.  GA3

2.  NAA

3.  Ethylene

4.  Zeatin

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4
Correct Answer :

NAA


Explanation :
No Explanation available for this question

The plants respond to photoperiods due to the presence of:

1.  Stomata

2.  Phytochromes

3.  Phytohormones

4.  Enzymes

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4
Correct Answer :

Phytochromes


Explanation :
No Explanation available for this question

Which of the following type of phytohormone resemble the nucleic acids in some structural aspects

1.  Cytokinins

2.  Auxins

3.  Gibberellins

4.  Abscisic acid

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4
Correct Answer :

Auxins


Explanation :
No Explanation available for this question

Ripening of fruits can be accelerated by:

1.  Heating

2.  Ethylene

3.  Nitrogen

4.  IAA

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4
Correct Answer :

Ethylene


Explanation :
No Explanation available for this question

Coconut milk factor is:

1.  Abscisic acid

2.  Cytokinins

3.  An auxin

4.  A gibberellins

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4
Correct Answer :

Cytokinins


Explanation :
No Explanation available for this question

In arithmetic growth, following mitotic cell division, only one daughter cell continue to divide while others differentiate plotting the length of the organ against time, a linear curve is obtained. It is expressed as:

1.  Lt = rt – L0

2.  Lt= tR+L0

3.  L0 = Lt +rt

4.  Lt = L0 + rt

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4
Correct Answer :

Lt = L0 + rt


Explanation :
No Explanation available for this question

The stress related hormone abscisic acid also:

1.  Aids in development of fruit

2.  Helps in closure of stomata

3.  Stimulates cell division

4.  Accelerates fruit ripening

View Answer  
4
Correct Answer :

Helps in closure of stomata


Explanation :
No Explanation available for this question
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