Which one of the following is not a constituent of cell membrane

1.  Glycolipids

2.  Proline

3.  Phospholipids

4.  Cholesterol

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4
Correct Answer :

Proline


Explanation :
No Explanation available for this question

Which of the following statement is/are true a. The resolution power of unaided human eye is 100 micrometre b. The highest resolution is obtained with the light of shortest wavelength c. Dark field microscope is most useful for viewing the living cells d. Chromatography is the method os separation of molecular components of the cells present in cytosol e. In gel filtration chromatography, molecules can be separated in pictogram to nanogram quantities

1.  a, c and d only

2.  b and d only

3.  c and e only

4.  a, b and d only

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4
Correct Answer :

c and e only


Explanation :
No Explanation available for this question

Which of the following statement is/are true a. The resolution power of unaided human eye is 100 micrometre b. The highest resolution is obtained with the light of shortest wavelength c. Dark field microscope is most useful for viewing the living cells d. Chromatography is the method os separation of molecular components of the cells present in cytosol e. In gel filtration chromatography, molecules can be separated in pictogram to nanogram quantities

1.  a, c and d only

2.  b and d only

3.  c and e only

4.  c, d and e only

5.  a, b and d only

View Answer  
5
Correct Answer :

a, b and d only


Explanation :
No Explanation available for this question

The method developed by Matthew Meselson and Franklin Stahl to separate heavy DNA with 15N from DNA with 14N, for providing evidence for semi conservative replication of DNA is:

1.  Ion exchange chromatography

2.  Density gradient centrifugation

3.  Buoyant density centrifugation

4.  Gel filtration

5.  Isopycnic centrifugation

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5
Correct Answer :

Buoyant density centrifugation


Explanation :
No Explanation available for this question

The result of numerical taxonomy are summarized in the from of tree-like diagrams called

1.  histograms

2.  karyograms

3.  ideograms

4.  dendrograms

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4
Correct Answer :

dendrograms


Explanation :
No Explanation available for this question

A system of classification, which takes into account, all noticeable characters in morphology in nature is

1.  phylogenetic system

2.  natural system

3.  artificial system

4.  cytotaxonomy

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4
Correct Answer :

natural system


Explanation :
No Explanation available for this question

Artificial system of classification of plants was first proposed by

1.  Engler and Prantl

2.  Bentham and Hooker

3.  Theophrastus

4.  Linnaeus

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4
Correct Answer :

Theophrastus


Explanation :
No Explanation available for this question

Phylogenetic system of classification was given by

1.  Linnaeus

2.  Bentham and Hooker

3.  Hutchinson

4.  Theophrastus

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4
Correct Answer :

Hutchinson


Explanation :
No Explanation available for this question

‘Flora of British India’ was written by

1.  Hutchinson

2.  Lawrence

3.  Tippo

4.  Bentham and Hooker

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4
Correct Answer :

Bentham and Hooker


Explanation :
No Explanation available for this question

Numerical aperture of microscope lens is expressed by

1.  Angular aperture only

2.  Refractive index only

3.  Both angular aperture and refractive index

4.  Wave length of the light used

View Answer  
4
Correct Answer :

Refractive index only


Explanation :
No Explanation available for this question
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