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(A) The discovery of restriction endonucleases,often referred to as 'molecular scissors',has made it possible to cut $DNA$ at specific sites.These enz

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Restriction endonucleases

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(A) The discovery of restriction endonucleases,often referred to as 'molecular scissors',has made it possible to cut $DNA$ at specific sites.These enzymes recognize specific nucleotide sequences and cleave the $DNA$ backbone,which is a fundamental step in recombinant $DNA$ technology.$DNA$ ligase is used to join $DNA$ fragments,but the initial modification and isolation of specific genes rely on restriction endonucleases.

In genetic engineering,the modification of $DNA$ has become possible due to the discovery of .............. .

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Hind $II$ always cuts $DNA$ molecules at a particular point called a recognition sequence,which consists of: (in $bp$)

Ability of a cell to absorb foreign $DNA$ is:

Restriction enzymes were discovered by

Choose the correct pair from the following:

Which of the following is the first restriction endonuclease discovered?

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