Question

Assertion (A): During plant tissue culture, the explants are treated with sodium hypochlorite.
Reason (R): Sodium hypochlorite helps in acclimatization of the regenerated plants.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

Be sure to make a note of various chemicals used during tissue culture and their specific functions.

Answer 1

The Correct Option is C

Assertion (A): Treating explants with sodium hypochlorite is done in plant tissue culture to sterilize them, and to remove surface pathogens that may be present on plant tissues, preventing microbial contamination during in vitro cultivation. Reason (R): Sodium hypochlorite, although used for sterilisation, is not used for acclimating regenerated plants. Acclimatization involves preparing the plants for transfer to soil, through regulating environmental conditions like humidity. Explanation: The assertion is correct, but the reason is false, making (C) the right choice.