Which of the following can be used to induce competence for getting a bacterial cell transformed during rDNA procedures?
1. | A divalent cation | 2. | Ethidium bromide |
3. | Polyethylene glycol | 4. | Anionic proteins |
A method used only for transforming animal cells is:
1. | Biolistics | 2. | Microinjection |
3. | Use of virus | 4. | Agrobacterium mediation |