Question

Restriction endonucleases cut

Answer 1

Answer:

Restriction endonucleases are enzymes also known as "MOLECULAR SCISSORS".

As the name suggests, they cut DNA /nucleic acids. The term "Endo" signifies that the cutting takes place within the nucleic acid and not from the periphery.

Restriction endonucleases cut double stranded DNA by cutting certain regions of the sugar - phosphate backbone.

The region of cutting is identified by the enzyme by recognising certain base sequences also known as Palindromic sequences.

Their nomenclature follows certain rules.

Examples : ECoR1, HInd3, etc.

Answer 2

Answer:

$A restriction enzyme, restriction endonuclease, or restrictase is an enzyme that cleaves DNA into fragments at or near specific recognition sites within molecules known as restriction sites. Restriction enzymes are one class of the broader endonuclease group of enzymes$