Question

Match the items in List I with items in List II

 

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

Hint:

mRNA provides the template for translation, tRNA carries amino acids, snRNA is involved in RNA splicing, and siRNA inhibits gene expression.

Answer 1

The Correct Option is A

Step 1: Understand the function of each type of RNA.
mRNA (Messenger RNA):
Provides the template for translation. It carries genetic information from DNA to ribosomes for protein synthesis. Hence, mRNA corresponds to III. provides template for translation.

tRNA (Transfer RNA):
Carries amino acids to the ribosome, where it matches its anticodon with mRNA codons to form polypeptides. Hence, tRNA corresponds to II. carries amino acids for translation.

snRNA (Small Nuclear RNA):
Involved in RNA splicing within the nucleus. It plays a key role in the removal of introns and the joining of exons during mRNA processing. Hence, snRNA corresponds to IV. involved in RNA splicing.

siRNA (Small Interfering RNA):
Functions in gene silencing and inhibits gene expression by degrading mRNA. Hence, siRNA corresponds to I. inhibits gene expression.

Step 2: Evaluate the options.

• Option (1): A - III, B - II, C - IV, D - I — Correct, matches the correct functions of each RNA type.
• Option (2): Incorrect — The pairings for mRNA and tRNA are wrong.
• Option (3): Incorrect — snRNA is paired incorrectly.
• Option (4): Incorrect — siRNA and snRNA are swapped.

Step 3: Conclusion.
The correct answer is Option (1) because the functions of the RNAs match with the descriptions provided.