Provirus:

1.  A free virus

2.  A free DNA

3.  Primitive virus

4.  Integrated viral genome

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4
Correct Answer :

Integrated viral genome


Explanation :
No Explanation available for this question

In the bacterium Bacillus subtilis the cells often become attached from end to end forming long filamentous chains, which are embedded in a mass of mucilage forming a scum layer on substratum. It is called as:

1.  palmella stage

2.  torula stage

3.  zoogloea stage

4.  None of the above

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4
Correct Answer :

zoogloea stage


Explanation :
No Explanation available for this question

Viroids cause:

1.  Tobacoo mosaic

2.  Tulip yellow mosaic

3.  Cauliflower mosaic

4.  Potato spindle mosaic

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4
Correct Answer :

Potato spindle mosaic


Explanation :
No Explanation available for this question

The host of TMV is

1.  Datura

2.  Triticum

3.  Nicotiana

4.  Withania

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4
Correct Answer :

Nicotiana


Explanation :
No Explanation available for this question

Prokaryotic chromosome is:

1.  naked double stranded circular DNA

2.  single stranded circular DNA

3.  composed of DNA or RNA

4.  associated with non-histones.

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4
Correct Answer :

naked double stranded circular DNA


Explanation :
No Explanation available for this question

Prions are infectious agents associated with mad cow disease. These agents are:

1.  DNA

2.  RNA

3.  Proteins

4.  All of above

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4
Correct Answer :

Proteins


Explanation :
No Explanation available for this question

Virus envelope is known as:

1.  Virion

2.  Nucleoprotein

3.  Core

4.  Capsid

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4
Correct Answer :

Capsid


Explanation :
No Explanation available for this question

Bacteria resemble yeasts because both have a property of:

1.  dengradation of food

2.  binary fission

3.  anaerobic respiration

4.  sexual reproduction.

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4
Correct Answer :

binary fission


Explanation :
No Explanation available for this question

One of the following is not applicable to Escherichia coli:

1.  transformatio

2.  transduction

3.  Cyanobacteria

4.  Variola.

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4
Correct Answer :

Variola.


Explanation :
No Explanation available for this question

Which of the following are intermediate between viruses and bacteria

1.  Mycoplasma

2.  Spirilla

3.  Cyanobacteria

4.  Variola.

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4
Correct Answer :

Mycoplasma


Explanation :
No Explanation available for this question
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