Question

Match List I with List II:

List I		List II
A	RNA polymerase III	I	snRNPs
B	Termination of transcription	II	Promotor
C	Splicing of Exons	III	Rho factor
D	TATA box	IV	SnRNAs, tRNA

Choose the correct answer from the options given below:

• A. A-II, B-IV, C-I, D-III
• B. A-III, B-II, C-IV, D-I
• C. A-III, B-IV, C-I, D-II
• D. A-IV, B-III, C-I, D-II

Answer 1

The Correct Option is D

In order to match List I with List II correctly, we analyze each element:

Let's make the correct matches:

• RNA polymerase III: This enzyme is responsible for synthesizing tRNA and some small RNA molecules, including snRNA. Therefore, RNA polymerase III is paired with SnRNAs, tRNA (IV).
• Termination of transcription: In prokaryotes, Rho factor is involved in the termination of transcription. Thus, Rho factor (III) corresponds to termination of transcription.
• Splicing of Exons: The process where snRNPs (small nuclear ribonucleoproteins) are involved in splicing introns and joining together exons to form the final mRNA. So, splicing of exons corresponds with snRNPs (I).
• TATA box: This is a DNA sequence that indicates where a genetic sequence can be read and decoded, acting as a promoter. Thus, the TATA box corresponds to Promotor (II).

The correct matches are: A-IV, B-III, C-I, D-II.

Answer 2

Matching Transcription-related Components with Their Functions:

• A. RNA polymerase III – Synthesizes snRNAs and tRNA. 
  Matches with: IV. Synthesizes snRNAs and tRNA.
• B. Termination of transcription – Involves the Rho factor. 
  Matches with: III. Involves the Rho factor.
• C. Splicing of exons – Facilitated by snRNPs. 
  Matches with: I. Facilitated by snRNPs.
• D. TATA box – Involved in the initiation of transcription and serves as a promoter region. 
  Matches with: II. Serves as a promoter region.

Thus, the correct answer is (4) A-IV, B-III, C-I, D-II.