Biology · Principles and Processes in Biotechnology

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).\n Assertion (A): Stirred-tank bioreactors usually have a curved base.\n Reason (R): A curved base facilitates uniform mixing of the reactor contents and prevents dead zones. \nIn the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. is true but (R) is false.
4. is false but (R) is true.