Which of the following is specifically used in genetic engineering?

Ligase

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Gyrase

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Restriction endonuclease

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DNA polymerase

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Solution

The correct option is C Restriction endonuclease
Restriction endonuclease has a wide use in genetic engineering. DNA molecules are broken down to smaller segments by means of restriction endonucleases. They break DNA at specific sites called restriction sites. The enzymes are obtained from bacteria such as Eco RI from Escherichia coli, Bam HI from Bacillus amyloliqufaceiens.

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