recombinant technology
| Allowed Value | Details |
|---|---|
| cell free synthesis | |
| chemical synthesis | |
| enzymatic semisynthesis | |
| na | |
| obtained from a collaborator | |
| obtained from a vendor | |
| purified from the natural source | |
| recombinant technology | |
| reverse transcriptase |
| Allowed Value | Details |
|---|---|
| cell free synthesis | |
| chemical synthesis | |
| enzymatic semisynthesis | |
| na | |
| obtained from a collaborator | |
| obtained from a vendor | |
| purified from the natural source | |
| recombinant technology | |
| reverse transcriptase |