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

1. Downstream processing

2. Bioprocessing

3. Post-product processing

4. Upstream processing

A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using?

DNA fragments are:

1. Negatively charged

2. Neutral

3. Either positively charged depending on their size

4. Positively charged

A gene whose expression helps to identify transformed cell is known as:

What is the criterion for the movement of DNA fragments on agarose gel during gel electrophoresis?

The cutting of DNA at specific locations became possible with the discovery of?

1. Restriction enzymes

2. Probes

3. Selectable markets

4. ligases

The introduction of t-DNA into plants involves?

1. Infection of the plant by Agrobacterium tumefaciens

2. Altering the pH of the soil, heat-shocking the plants

3. Exposing the plants to Cold for a brief period

4. Allowing the plant roots to stand in water

Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?

1. Plant cells- cellulase

2. Algae - Methylase

3. Fungi - Chitinase

4. Bacteria - Lysozyme