Multiple choice

Assertion (A): Dimethyl sulphoxide (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. If A and R both are correct and R is correct explanation of A.
2. If A and R both are correct and R is not correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.

  1. 1

  2. 2

  3. 3

  4. 4

  5. 5
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct answer. A is correct and R is incorrect. Dimethyl sulphoxide (DMSO) is used as a cryopreservant for mammalian cell cultures to protect cells from ice crystal induced mechanical injury. It protects cells by preventing crystallisation of water.

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