Artificial synthesis of DNA was first done by:

1.  Nirenberg

2.  Korenberg

3.  Khorana

4.  Watson and Crick

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4
Correct Answer :

Korenberg


Explanation :
No Explanation available for this question

Adhesive pad of fungi penetrates the host with the help of:

1.   Mechanical pressure and enzymes

2.   Hooks and suckers

3.  Softening by enzymes

4.  Only by mechanical pressure.

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4
Correct Answer :

 Mechanical pressure and enzymes


Explanation :
No Explanation available for this question

Minimum number of amino acids to make an enzyme is:

1.  50

2.  150

3.  500

4.  5000

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4
Correct Answer :

50


Explanation :
No Explanation available for this question

Enzymes catalyzing hydrolysis of ester and peptide by the addition of water are known as:

1.  Transferases

2.  Hydrolases

3.  Isomerases

4.  hydrolases

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4
Correct Answer :

Hydrolases


Explanation :
No Explanation available for this question

Chlorophyll or chloroplast is present in spores of:

1.  Lycopodium

2.  Selaginella

3.  Adiantum

4.  Marsilea.

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4
Correct Answer :

Lycopodium


Explanation :
No Explanation available for this question

In some species,parthenogenesis may alternate with sexual reproduction,this process is called

1.  complete parthenogenesis

2.  incomplete or cyclic parthenogenesis

3.  Both (a) and (b)

4.  None of the above

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4
Correct Answer :

incomplete or cyclic parthenogenesis


Explanation :
No Explanation available for this question

Stem cells is an alternative term for:

1.  Dedifferentiated cells

2.  Redifferentiated cells

3.  undifferentiated cells

4.  differentiated cells

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4
Correct Answer :

undifferentiated cells


Explanation :
No Explanation available for this question

Trophozoite and minuta. The trophozoite is the active, motile, feeding form and is pathogenic whereas minuta is the precystic small, spherical, non-motile, non-feeding form which is non-pathogenic to man and serves for transmission of the parasite from one to other host:

1.  Statement is wrong

2.  Statement is true

3.  Statement is partially correct

4.  None of these.

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4
Correct Answer :

Statement is true


Explanation :
No Explanation available for this question

Oocyst of Plasmodium is formed in:

1.  erythrocyte of man

2.  plasma of man

3.  liver cells of man

4.  gut wall of mosquito.

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4
Correct Answer :

gut wall of mosquito.


Explanation :
No Explanation available for this question

Gemmules are endogenous in origin and play vital role in:

1.  Perennation

2.  Dispersal

3.  Reproduction

4.  All of above.

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4
Correct Answer :

All of above.


Explanation :
No Explanation available for this question
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