Colchicine prevents the mitosis of cell at which of following stage

1.  Anaphase

2.  Metaphase

3.  Prophase

4.  Interphase

View Answer  
4
Correct Answer :

Metaphase


Explanation :
No Explanation available for this question

Assertion : Cyclic pathway of photosynthesis first appeared in some eubacteria species. Reason : Oxygen started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolved.

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

2.  If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

View Answer  
5
Correct Answer :

If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.


Explanation :
No Explanation available for this question

Assertion : Nitrogen fixing enzyme in legume root nodules function at low oxygen concentration. Reason : Low oxygen concentration is provided by leghaemoglobin

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

2.  If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

View Answer  
5
Correct Answer :

If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.


Explanation :
No Explanation available for this question

Assertion : Red algae contributes in producing coral reefs. Reason : Some red algae secrete and deposit calcium carbonate over their walls.

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

2.  If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

View Answer  
5
Correct Answer :

If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.


Explanation :
No Explanation available for this question

Assertion : Insects visit flower to get honey. Reason : Attraction of flowers prevents the insects from damaging other parts of the plant.

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

2.  If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

View Answer  
5
Correct Answer :

If both the Assertion and the Reason are false.


Explanation :
No Explanation available for this question

Assertion : Coconut tree is distributed in coastal areas over a large part of the world Reason : Coconut fruit can float and get dispersed over thousands of kilometer before losing viability

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

2.  If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

View Answer  
5
Correct Answer :

If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.


Explanation :
No Explanation available for this question

Assertion : Deficiency of sulphur causes chlorosis in plants. Reason : Sulphur is a constituent of chlorophyll, proteins and nucleic acids

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

2.  If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

View Answer  
5
Correct Answer :

If the Assertion is true but the Reason is false.


Explanation :
No Explanation available for this question

Assertion : Cattle breeds can be improved by super ovulation and embryo transplantation. Reason : Superovulation in high milk yielding cow is induced by hormonal injection

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

2.  If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

View Answer  
5
Correct Answer :

If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.


Explanation :
No Explanation available for this question

Which disease has XXY chromosome constitution

1.  Down's syndrome

2.   Turner's syndrome

3.  Klinefelter's syndrome

4.  Okazaki syndrome

View Answer  
4
Correct Answer :

Klinefelter's syndrome


Explanation :
No Explanation available for this question

Cell wall is absent in :

1.  Amoeba

2.  Chara

3.   Yeast

4.  E. coli

View Answer  
4
Correct Answer :

Amoeba


Explanation :
No Explanation available for this question
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