If you have transformed cell with recombinant DNA and it grows on kanamycin and chloramphenicol containing plates but does not grow on ampicillin containing medium. What does it imply?

A.      The cell has resistance against ampicillin but not against chloramphenicol and kanamycin

B.      Has resistance against both kanamycin and chloramphenicol but not against ampicillin

C.      We may not confer anything from it

D.     It depends upon gene of interest

Subtopic:  Host & Desired DNA: I | Host & Desired DNA |
 74%
From NCERT
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The ultimate aim of maximum recombinant DNA technologies is

1. To multiply DNA

2. To express DNA

3. To multiply mRNA

4. To express protein

Subtopic:  Large Scale Production: III | Large Scale Production |
 64%
From NCERT
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Which of the following processes is not associated with protein produced by recombinant DNA?

A.      Restriction Digestion

B.      Expression

C.      Optimization

D.     Purification

Subtopic:  Large Scale Production |
From NCERT
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What does continuous culture mean?

A.      Where DNA and protein getting expressed continuously

B.      Where used medium is drained out and fresh medium is  added from other side

C.      Where cells are producing protein for one week continuously

D.     Where production of recombinant DNA is continuing without interference.

Subtopic:  Large Scale Production: II | Large Scale Production |
 83%
From NCERT
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Continuous culture leads to

1. Smaller biomass

2. Higher yields of desired proteins

3. Both A and B

4. Higher yields of recombinant DNA

Subtopic:  Large Scale Production: II | Large Scale Production |
 62%
From NCERT
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The cylindrical body or curved base of a bioreactor actually facilitates

1. The handling and maintenance of bioreactor

2. The mixing of the reactor content
3. Better oxygen transport
4. More accumulation of product

Subtopic:  Large Scale Production: II | Large Scale Production |
 59%
From NCERT
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The Agitation system of bioreactor has

1. Flat bladed impeller

2. Sharp impellers

3. Foam breaker

4. Steamer

Subtopic:  Large Scale Production: II | Large Scale Production |
 55%
From NCERT
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Increased surface area for oxygen transfer is a feature found specifically in

1. Simple stirred tank bioreactor

2. Sparged stirred-tank bioreactor

3. All stirred tank bioreactors

4. All bioreactors have this property

Subtopic:  Large Scale Production: II | Large Scale Production |
 65%
From NCERT
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Quality control testing is not

A.      A part of downstream processing

B.      Include separation and purification

C.      Both A and B

D.     Vary from product to product

Subtopic:  Large Scale Production: II | Large Scale Production |
 53%
From NCERT
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The formulation with suitable preservatives in the case of drugs has to undergo
 1. Thorough clinical trials
 2. Thorough strict separation techniques
 3. Thorough harsh heat shock control
 4. Thorough long restriction digestion

Subtopic:  Bioreactors/Downstream Processing |
 84%
From NCERT
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