Question

Which of the following statement can be related to the cloverleaf model of t-RNA?

• A. It is two-dimensional structure
• B. All of the above
• C. It is considered as secondary structure of the t-RNA
• D. It is mainly formed during post-translational changes

Answer 1

Answer: (B)

The primary structure of tRNA is a small, linear, single-stranded nucleic acid. This tRNA due to its stretches of complementary base pairs forms two-dimensional secondary structure, which is in the form of a cloverleaf. Modifications to form the stem-loop and anticodon loop are important for tRNA stability and functioning. Thus it undergoes post-translational changes. Thus the correct answer is option D.