Who among the following scientists is associated with the discoveries in genetic engineering?

An alien $DNA$ is linked with the origin of replication, so that this alien piece of $DNA$ can replicate and multiply itself in the host organism. This can also be called ......

Discuss with your teacher what does 'a suitable gene' mean in the context of $DNA$ vaccines.

Credit for the construction of the first recombinant $DNA$ is given to:

Give general information about Biotechnology.

Give general information about the origin of the recombinant $DNA$ molecule.