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

1. Restriction enzymes

2. Probes

3. Selectable markets

4. ligases

The DNA molecule to which the gene of interest is integrated for cloning is called:

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 vector can clone only a small fragment of DNA?

1. Bacterial artificial chromosome

2. Yeast artificial chromosome

3. Plasmid

4. Cosmid

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

DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by:

1. Polymerase chain reaction

2. Electrophoresis

3. Restriction mapping

4. Centrifugation

The colonies of recombinant bacteria appear white because of:

For transformation, microparticles coated with DNA to be bombarded with gene gun are made up of:

1. Silver or platinum

2. Platinum or zinc

3. Silicon or platinum

4. Gold or tungsten