Question

(iii) genetic engineering starts with the discovery of which enzyme: 1
(a) Restriction endonuclease
(b) DNA ligase
(c) DNA polymerase
(d) DNA gyrase
(iv) Which one of the following is the regular necessity of an ecosystem
(a) Water (b) Wind
(c) Energy (d) none of these
11​

Answer 1

Answer:

(iv) water is the regular necessity of an ecosystem..

(iii) DNA polymerase