Question

Assertion (A**)** : Dolly was the first cloned mammal.

Reason (R**)** : Dolly was produced by in vitro fertilization.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not a correct explanation of A

(c) A is true but R is false

(d) A is false but R is true

Answer 1

(d) Cloning is a process, which artificially performed in laboratory ( in vitro). Dolly was a clonned animal, but not the first cloned mammal. In 1984 a mice was cloned first.