Which of the following restriction sites is located within the gene for tetracycline resistance in the plasmid pBR322?

1. BamHI

2. Psti

3. Clal

4. Pvull

Subtopic:  Tools: Vectors: II | Tools |
 90%
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The technique not used for transformation of plant cells in recombinant procedures is:

1. Biolistics

2. Agrobacterium mediation

3. Use of viruses

4. Micro-injection

Subtopic:  Tools: Vectors: II | Tools |
 52%
From NCERT
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In the screening process during rDNA experiments, clones that metabolize β-gal turn:

1. Colorless

2. Blue

3. Yellow

4. Green

Subtopic:  Selectable Markers: III | Selectable Markers |
 65%
From NCERT
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Microinjection is suitable for :

1. Injecting an ovum into the sperm in IVF

2. Transforming animal cells

3. Injecting very small sized drug particles into neurons

4. Conferring antibiotic resistance to a certain strain of bacteria 

Subtopic:  Tools: Vectors: II | Tools |
 71%
From NCERT
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The plasmid pBR322 does not contain:

1. An origin of replication site

2. A gene that encodes for restrictor of plasmid copy number

3. Gene for Ampicillin and Streptomycin resistance

4. Sites for many restriction enzymes

Subtopic:  Tools: Vectors: II | Tools |
 65%
From NCERT
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Restriction enzymes are synthesized by:

1. Bacteria only

2. Yeast and bacteria only

3. Eukaryotic cells only

4. All kinds of cells

Subtopic:  Restriction Enzymes: Historical Background |
 53%
From NCERT
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The bioreactor shown in the diagram is:

   

1. Sparged stirred tank type

2. Airlift type

3. Simple stirred tank type

4. Fluidized bed type

Subtopic:  Large Scale Production: II | Large Scale Production |
 75%
From NCERT
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What is true about the steps of PCR shown in the diagram given below?

l. Step A occurs at the temperature of 95-98o C

ll. Step B occurs at the temperature of 55o C

lll. Step C occurs at the temperature of 72o C

1. l and ll only

2. l and lll only

3. ll and lll only

4. l, ll and lll

Subtopic:  Large Scale Production: I | Large Scale Production |
 67%
From NCERT
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A and B in the pBR 322, shown in the diagram given below, respectively represent recognition sequences of:

  

1. BamH I and Sma I

2. Hind II and Sma I

3. BamH I and SaI I

4. SaI I and Hind II

Subtopic:  Tools: Vectors: II | Tools |
 83%
From NCERT
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What is true A,B and C in the given diagrammatic representation of rDNA technology ?

I. At A same restriction enzyme is used to cut both foreign and vector DNA

II. The enzyme used at B is DNA ligase

III. Step C can be called as transformation

1. I and II only

2. I and III only

3. II and III only

4. I,II and III

Subtopic:  Introduction & History: II | Tools: Enzymes: I | Introduction & History | Tools |
 87%
From NCERT
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