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Select the correct statement from the following:

Option: 1

The polymerase enzyme joins the gene of intrest and the vector DNA


Option: 2

Restriction enzyme digestions are performed by incubating purified DNA molecules with restriction enzymes of optimum conditions


Option: 3

PCR is used for isolation and sepration of gene of interest


Option: 4

Gel electrophoresis is used for amplification of DNA segment


Answers (1)

best_answer

The vector and the target DNA fragment can be sepeartely digested with the same restriction enzyme. The digested vector and the target DNA fragment are then incubated together in the presence of DNA ligase enzyme. Incubation results in bonding two types of DNA by phosphodiester bonds between them. Thus forming a recombinant DNA molecule.

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