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.

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Continuous culture has

A.      Cells in their physically active phase

B.      Lag phase

C.      Both A and B

D.     Exponential phase

Concept Questions :-

Large Scale Production: II
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Continuous culture leads to

A.      Smaller biomass

B.      Higher yields of desired proteins

C.      Both A and B

D.     Higher yields of recombinant DNA

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The volume of bioreactors cannot be

A.      20 L

B.      100L

C.      150L

D.     200L

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Bioreactors doesn't provide which of the conditions?

A.      Salts

B.      Vitamins

C.      Cells

D.     Oxygen

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The most commonly used bioreactors are

A.      Stirring type

B.      Sparged type

C.      Aerobic type

D.     Both B and C

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The cylinderical body or curved base of a bioreactor actually facilitates

A.      The handling and maintenance of bioreactor

B.      mixing

C.      better oxygen transport

D.     more accumulation of product

Concept Questions :-

Large Scale Production: II
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The Agitation system of bioreactor has

A.      Flat bladed impeller

B.      Sharp impellers

C.      Foam breaker

D.     Steamer

Concept Questions :-

Large Scale Production: II
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Increased surface area for oxygen transfer is a feature found specifically in

A.      Simple stirred tank bioreactor

B.      Sparged stirred-tank bioreactor

C.      All stirred tank bioreactors

D.     All bioreactors have this property

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Downstream processing includes

A.      Separation

B.      Purification

C.      Both A and B

D.     Quality control Testing

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