Which enzyme is used to join together two different types of DNA molecules?(a) ligase(b) endonuclease(c) exonuclease(d) proteaseThe question was asked during a job interview.Origin of the question is Techniques topic in chapter Techniques in Cell Biology of Cell Biology

Which enzyme is used to join together two different types of DNA molec

1.	Which enzyme is used to join together two different types of DNA molecules?(a) ligase(b) endonuclease(c) exonuclease(d) proteaseThe question was asked during a job interview.Origin of the question is Techniques topic in chapter Techniques in Cell Biology of Cell Biology
Answer» Correct choice is (a) ligase Best explanation: DNA ligase is used to join two DIFFERENT types of DNA molecules, thus giving rise to a RECOMBINANT molecule that can be CLONED inside a suitable HOST to facilitate the gene expression.

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