Elution is:
1. | separating the restricted DNA fragments on agarose gel |
2. | staining the separated DNA fragments with ethidium bromide |
3. | cutting out of the separated bands of DNA from the agarose gel and extracting them from the gel piece |
4. | constructing rDNA by joining the purified DNA fragments to the cloning vector |
What controls the copy number of linked DNA if plasmid is used as a vector in bacterial transformation?
1. | Ori | 2. | rop |
3. | Selectable markers | 4. | Promoter in the insert |