In 1963, two enzymes responsible for restricting the growth of bacteriophage in E.Coli were isolated. They were ……….. and ……… respectively.

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Ligase, Restriction endonuclease

Helicase, Restriction endonuclease

Methylase, Restriction endonuclease

DNA polymerase, Restriction endonuclease

answer is C.

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Detailed Solution

In the year 1963, the two enzymes responsible for restricting the growth of bacteriophage in Escherichia coli were isolated. One of these added methyl groups to DNA, while the other cut DNA. The later was called restriction endonuclease.

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