Question

Which one of the following is applicable for t-RNA?

• A. Folded on itself
• B. Self replicating
• C. Largest molecule
• D. Has two strands

Hint:

tRNA is folded into a cloverleaf structure, which is critical for its role in translating mRNA into proteins.

Answer 1

The Correct Option is A

Step 1: Understanding t-RNA.
Transfer RNA (tRNA) is a small RNA molecule that helps decode messenger RNA (mRNA) into proteins. It has a specific 3D structure, folded on itself to form a "cloverleaf" shape, which is crucial for its function.
Step 2: Analyzing the options.
(A) Folded on itself: Correct — tRNA is folded into a three-dimensional structure, which is essential for its function in protein synthesis.
(B) Self replicating: Incorrect — tRNA is not self-replicating; replication is a property of DNA.
(C) Largest molecule: Incorrect — tRNA is a small molecule compared to other forms of RNA like mRNA.
(D) Has two strands: Incorrect — tRNA is a single-stranded RNA molecule, not double-stranded.
Step 3: Conclusion.
The correct answer is (A) Folded on itself, as tRNA has a folded structure essential for its function.