The first type II restriction endonuclease discovered that could cut dsDNA specific site was:

1. EcoRI

2. SmaI

3. Hind II

4. Hind III

Which statement regarding restriction endonucleases is NOT correct?

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

(1) Eco RI                       

(2) taq polymerase

(3) polymerase III           

(4) ligase

Which of the following is a endonuclease?

(1) Protease

(2) DNase I

(3) RNase restriction

(4) Hind II

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

1. restriction enzymes

2. probes

3. selectable markets

4. ligases