Question

Given below are few statements with regards to restriction enzyme

(i) It recognises a palindromic nucleotide sequence.

(ii) It produces the same kind of sticky ends in different DNA molecules.

(iii) It is isolated from viruses.

(iv) It ligates all purine and pyrimidine bases.

Which of the above mentioned statements are true for restriction enzyme?

(a) (i) and (iv) (b) (i) and (ii)

(c) (ii) and (iv) (d) (ii) and (iii)​

Answer 1

Answer:

option a

Explanation

restriction enzymes cut the DNA recogniseing a particular palindromic nucleotide sequence. it cuts between the same nucleotide on each strand a little away from the center of palindromic sequence. thus leaving a sticky ends