NEETZoologyMolecular Basis of Inheritance
Match List-I with List-II regarding the enzymes involved in eukaryotic transcription and their products. List-I List-II A. RNA polymerase I I. hnRNA B. RNA polymerase II II. 28S rRNA C. RNA polymerase III III. tRNA and snRNAs Choose the correct answer from the options given below:
Options
- AA-I, B-II, C-III
- BA-II, B-III, C-I
- CA-III, B-I, C-II
- DA-II, B-I, C-III
Correct answer
D. A-II, B-I, C-III
Step-by-step solution
In eukaryotes, there are three major types of RNA polymerases in the nucleus, each with specific functions. RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S). Therefore, A matches with II. RNA polymerase II transcribes the precursor of mRNA, known as heterogeneous nuclear RNA (hnRNA). Therefore, B matches with I. RNA polymerase III is responsible for the transcription of tRNA, 5S rRNA, and snRNAs (small nuclear RNAs). Therefore, C matches with III. The correct matching sequence is A-II, B-I, C-III. Answer: A-