BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Definition. A restriction enzyme is a protein isolated from bacteria that cleaves DNA sequences at sequence-specific sites, producing DNA fragments with a known sequence at each end. The use of restriction enzymes is critical to certain laboratory methods, including recombinant DNA technology and genetic engineering.

Detailed explanation-2: -Where do restriction enzymes come from? Restriction enzymes are found in bacteria. Bacteria use restriction enzymes to kill viruses – the enzymes attack the viral DNA and break it into useless fragments.

Detailed explanation-3: -A restriction enzyme is also called endonucleases, a protein produced by various bacteria. Complete answer: Escherichia coli RY 13: Also known as E. coli, it is a typical bacteria found in the human intestine as a regular part of the gut.

Detailed explanation-4: -Definition. Restriction enzymes are a group of proteins that bacteria produce to cut up the DNA of invading viruses. Electron micrograph of Escherichia coli, close-up. Such bacteria are an important source for restriction enzymes.