NEETZoologyMolecular Basis of Inheritance
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In bacteria, the RNA polymerase enzyme is only capable of catalyzing the process of elongation. Reason (R): It associates transiently with initiation-factor ( ) and termination-factor ( ) to initiate and terminate transcription, respectively. In the light of the above statements, choose the most ap
Options
- A(A) is true but (R) is false.
- B(A) is false but (R) is true.
- CBoth (A) and (R) are true and (R) is the correct explanation of (A).
- DBoth (A) and (R) are true but (R) is not the correct explanation of (A).
Correct answer
A. (A) is true but (R) is false.
Step-by-step solution
Assertion (A) is true because in prokaryotes, the DNA-dependent RNA polymerase core enzyme is only capable of catalyzing elongation. Reason (R) is false because the RNA polymerase associates transiently with the initiation factor ( ), not ( ), to initiate transcription, and it associates with the termination factor ( ), not ( ), to terminate the process. Answer: (A) is true but (R) is false.