Question

what is restriction enzyme​

Answer 1

Restriction Enzymes

• They are present in many bacteria where they function as part of their defence mechanism called the restriction modification system.

• They identify the introduced foreign DNA and cut it into pieces.

• There are two types of restriction endonucleases.

• Type1, Type 2 and Type 3, differing slightly in their mode of action.

• Out of these, only Type 2 restriction enzymes are used in recombinant DNA technology.

• Each restriction endonuclease have a specific point by recognising a specific sequence of four to eight nucleotides.

• It is known as recognition sequence or specific sites for palindromic sequence.

Answer 2

Explanation:

Fa Xian, Xuan Zang and I-Qing were the famous Chinese pilgrims that came to India around