Answer:
1) An origin of replication.
2) A selectable marker (e.g., a gene encoding antibiotic resistance).
Others are not necessary.
Explanation: In genetic engineering, three (3) things are responsible for manipulating nucleic acids, they are: plasmid, an origin of replication, and a selectable marker.
d. nitrogen cycle they are key in bacteria
<span>B. Serve a different function I think</span>
Answer:
I guess Comparative anatomy