Continuous culture has

1.      Cells in their physically active phase

2.      Lag phase

3.      Both A and B

4.     Exponential phase

Continuous culture leads to

1. Smaller biomass

2. Higher yields of desired proteins

3. Both 1 and 2

4. Higher yields of recombinant DNA

The volume of bioreactors cannot be

1.      20 L

2.      100L

3.      150L

4.     200L

Bioreactors don't provide which of the conditions?

1. Salts

2. Vitamins

3. Cells

4. Oxygen

The most commonly used bioreactors are

1. Stirring type

2. Sparged type

3. Aerobic type

4. Both 2 and 3

The cylindrical body or curved base of a bioreactor actually facilitates

1. The handling and maintenance of bioreactor

2. mixing

3. better oxygen transport

4. more accumulation of product

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

Downstream processing includes

1.      Separation

2.      Purification

3.      Both 1 and 2

4.     Quality control Testing

The Downstream processing occurs after

1.      Biosynthetic phase

2.      Separation phase

3.      Purification phase

4.     All of these

Quality control testing is not

1.      A part of downstream processing

2.      Include separation and purification

3.      Both 1 and 2

4.     Vary from product to product