Verified Answer :

 The recombinant DNA produced by the combination of a vector and the gene of interest are inserted in the E. coli, which produces multiple copies of this recombinant DNA along with the chromosomal DNA and expresses the gene.

Answer:

e. coli can be considered a manufacturing unit in the field of genetic engineering.

Explanation:

E .coli are bacteria that have the ability to multiply and increase in number in a short span of time. This characteristics of E. Coli allows frequent usage of E. coli bacteria in genetic engineering in order to produce multiple DNA copies in a short period . Also E. coli is preferred over any other bacteria for protein production as it acts as a host for several replication and duplication activities associated with gene cloning.

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