Principle of Inheritance and VariationHard

Question

Genetic engineering is possible, because

Options

A.the phenomenon of transduction in bacteria is well understood
B.we can see DNA by electron microscope
C.we can cut DNA at specific sites by endonucleases like DNAs-I
D.restriction endonucleases purified from bacteria can be used in vitro

Solution

Genetic engineering is the manipulation of genetic material of an organim using enzyme restric tion endonuclease. Nathans and Smith (1970) isolated the first restriction endonuclease. Jack son, Symons and Paul Berg (1972) successfully generated recombinant DNA molecules in vitro.

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