The bioreactor shown in the diagram is:

1. Sparged stirred tank type

2. Airlift type

3. Simple stirred tank type

4. Fluidized bed type

The process of separation and purification of expressed protein before marketing is called

(1) upstream processing

(2) downstream processing

(3) bioprocessing

(4) postproduction processing

Stirred-tank bioreactors have been designed for:

1. purification of product

2. addition of preservatives to the product

3. availability of oxygen throughout the process

4. ensuring anaerobic conditions in the culture vessel

Which of the following is not a component of downstream processing?

1. Separation

2. Purification

3. Preservation

4. Expression

Continuous addition of sugars in ‘fed batch’ fermentation is done to

1. obtain antibiotics

2. purify enzymes

3. degrade sewage

4. produce methane

Go through the statements:

A. During the processing of the prohormone "proinsulin" into the mature "insulin", C-peptide is removed from proinsulin.

B. In hydridoma technology, B-cells are fused with myeloma cells.

C. Genetic engineering has been successfully used for producing transgenic mice for testing safety of polio vaccine before use in humans.

D. Some of the characteristics of Bt cotton are high yield and resistance to bollworms.

E. An improved variety of transgenic basmati rice gives high yield and is rich in vitamin A.

F. Gray biotechnology' is referred to industrial process.

G. The polymerase chain reaction is a technique that is used for in vivo replication of DNA. 

How many statement(s) is wrong?

(1) One

(2) Two

(2) Four

(4) Six

Downstream processing does not include

A distinct advantage of continuous culture over batch culture is

3. In a type of yeast fermentation , the entire medium with fermenting organism is removed from the bioreactor after reaching an alcohol level of 10-12%. This process is called
a. Continuous process
b. Batch process
c. Synchronous culture
d. Immobilized process

According to the traditional view which of the following can be kept under the process or form in Biotechnology?

1. Test tube baby

2. DNA vaccine

3. Making of wine

4. Correcting a gene