If we are able to link an alien piece of DNA with ……a…...We can multiply it's number equal to the copy number of

…a…..

1. a- bacteriophage

2. a- Plasmid

3. a- bacteriophage or Plasmid

4. a- prion

Subtopic:  Tools: Vectors: II | Tools |
 64%
From NCERT
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Which of the following is not a feature to facilitate cloning into a vector?

1.      Origin of replication

2.      Selectable Marker

3.      Multiple cloning site

4.      Virulence region

Subtopic:  Tools: Vectors: I | Tools: Vectors: II | Tools |
 69%
From NCERT
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If I want to check the expression of my gene, then I should use

1.      Vectors supporting high copy number

2.      Vectors supporting low copy number

3.      No need to bother about copy number

4.     Vectors with strong Ori

Subtopic:  Tools: Vectors: II | Tools |
From NCERT
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Selectable marker helps

1.      To identify transformants

2.      To identify recombinants

3.      To identify non- recombinants

4.      To eliminate transformants

Subtopic:  Selectable Markers: I | Selectable Markers: II | Selectable Markers |
 55%
From NCERT
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The normal E. coli cells have

1.      Kanamycin

2.      Tetracycline

3.      Ampicillin

4.     No resistance

Subtopic:  Host & Desired DNA: I | Host & Desired DNA |
 86%
From NCERT
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For easiest cloning, one needs to get vector with

1.      Single cloning site

2.      Multiple cloning site

3.      Few cloning site

4.     No cloning site at all

Subtopic:  Tools: Vectors: I | Tools |
 67%
From NCERT
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If the gene of Beta-galactosidase is not inactivated, means there will be color in the colonies of

1.      Non- recombinant

2.      Recombinant

3.      Transformants

4.     Non-transformants

Subtopic:  Selectable Markers: III | Selectable Markers |
 60%
From NCERT
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Insertional inactivation results in

1.      Non-recombinants

2.      Recombinants

3.      Transformants

4.     Non- transformants

Subtopic:  Selectable Markers: III | Selectable Markers |
 72%
From NCERT
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Which of the following options is correct about Agrobacterium tumifaciens?

1.     It is a pathogen of angiosperms

2.     It is able to deliver a piece of DNA known as T-DNA to transform bacterial cell and direct the cell to produce chemicals required by the pathogen

3.     Its Ti plasmid is now modified into an expression vector

4.     Its Ti plasmid is modified into a cloning vector which is no more pathogenic

Subtopic:  Cloning Vector |
 53%
From NCERT
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In order to make the host cell competent

Divalent cations such as calcium are used-

1.      The divalent ions have to be in a specific concentration

2.      They cause the DNA uptake by the cell

3.      They increase the efficiency with which DNA enters the bacterium through pores in its cell wall.

4.     All of the above

Subtopic:  Host & Desired DNA: I | Host & Desired DNA |
 86%
From NCERT
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