Life Sciences (GATE)

Assertion (A): DMSO is used as a cryopreservant for mammalian cell cultures.
Reason (R): It easily penetrates cells.

Directions: In the following question, there are two statements, Assertion (A) and Reason (R). Consider both the statements independently and mark your answers as under:

1. A and R both are correct and R is the correct explanation of A.
2. A and R both are correct and R is not the correct explanation of A.
3. A is correct and R is incorrect.
4. A is incorrect and R is correct.
5. A and R both are incorrect.