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 :

To find the correct match, let us analyze each item in List I with its corresponding match in List II:

A. RNA polymerase III: In eukaryotes, RNA polymerase III is the enzyme responsible for transcribing transfer RNA (tRNA), 5S ribosomal RNA (5S rRNA), and some small nuclear RNAs (snRNAs, such as U6 snRNA). Therefore, A matches with IV (SnRNAs, tRNA).

B. Termination of transcription: In prokaryotic cells, transcription termination can be Rho-dependent, requiring a specific termination protein called the Rho factor (a helicase) to dissociate the RNA transcript from the DNA template. Therefore, B matches with III (Rho factor).

C. Splicing of Exons: Splicing is the post-transcriptional modification process in eukaryotic cells where non-coding introns are removed and coding exons are joined. This reaction is catalyzed by a large molecular complex called the spliceosome, which is made up of small nuclear ribonucleoproteins, commonly referred to as snRNPs ("snurps"). Therefore, C matches with I (snRNPs).

D. TATA box: The TATA box is a conserved, adenine- and thymine-rich DNA sequence found in the promoter region of eukaryotic genes. It acts as a key site for transcription factor binding to initiate the assembly of the transcription machinery. Therefore, D matches with II (Promoter).

Combining all the correct matches, we get:
A - IV
B - III
C - I
D - II