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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A molecular technique in which DNA sequences between two oligonucleotide primers can be amplified is known as

1. southern blotting
2. northern blotting
3. polymerase chain reaction
4. DNA replication

Subtopic:  Large Scale Production: I | Large Scale Production |
 79%
From NCERT
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Agrobacterium tumefaciens is

1. a disease in humans that causes loss of sight
2. a bacterium that can be used to introduce DNA into plants
3. a fungi that is used to produce antibiotics in large amounts
4. a disease in humans that causes loss of weight

Subtopic:  Tools: Vectors: II | Tools |
 96%
From NCERT
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Vectors are

1. molecules that degrade nucleic acids
2. molecules that help in replication
3. molecules that are able to covalently bond to and carry foreign DNA into cells
4. molecules that protect host cells from invasion by foreign DNA

Subtopic:  Tools: Vectors: I | Tools |
 83%
From NCERT
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Bacterial cells protect their own DNA from degradation by restriction endonucleases by

1. methylating the DNA at the sites that the enzyme recognizes
2. deleting all recognition sites from the genome
3. not producing any restriction endonucleases
4. having anti restriction endonucleases

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