Microbial metabolism - genetic control test questions

1

Mutagenic agents can cause mutagenesis. Which of the following is a chemical mutagenic agent?

2

What is the preferable vector when larger fragments of DNA are required to be inserted?

3

DNA can be cut into fragments. Which group of enzymes can do this?

4

What name is given to the fragment of DNA shown?

Sticky ends within pieces of DNA after an enzyme cut.

5

What name is given to the enzyme that joins two fragments of DNA together?

6

What is the vector shown in this diagram?

TB ligase diagram

7

Which type of cells can be used to produce active proteins that are normally inactive in bacteria?

8

Recombinant plasmids and artificial chromosomes contain the following:

9

Selectable marker genes do what?

10

As a safety mechanism what is often introduced that prevents the survival of a micro-organism in an external environment?