Question

What are type IV restriction enzymes?

Answer 1

Restriction enzymes:

1. The proteins produced by bacteria which cleave or break the DNA at specific site are known as restriction enzymes.
2. Restriction enzyme produces DNA fragments with a known sequence at each end.
3. Restriction enzymes are also known as molecular scissors.
4. Restriction enzymes are of four types: Type I restriction enzymes, Type II restriction enzymes, Type III restriction enzymes and Type IV restriction enzymes.

Type IV restriction enzymes:

1. Type IV restriction enzymes are the type of restriction enzymes that can cleave the methylated DNA sequences.
2. Type IV restriction enzymes are less sequence-specific.