Question

Match the nucleic acid and its model from the given columns.

Nucleic acid	Model
(A) DNA	(p) Double helical
(B) tRNA (two dimensional)	(q) Clover leaf
(C) tRNA (three dimensional)	(r) Hair pin
(D) rRNA	(s) L Shape

• A. A-p, B-q, C-s, D-r
• B. A-p, B-r, C-q, D-s
• C. A-p, B-s, C-q, D-r
• D. A-p, B-s, C-r, D-q

Answer 1

The correct option is A A-p, B-q, C-s, D-r

The most widely accepted, secondary structure of DNA is the double helical structure as described by Watson and Crick.

tRNA is a small molecule. It's two dimensional structure is the cloverleaf structure with distinct arms produced by standard Watson-Crick base pairing. In the three dimensional, however, the tRNA looks like an inverted L.

The rRNA is a component of ribosomes. It has hairpin structure due to the presence of complementary bases on a single strand. The hairpin structure interacts with mRNA and tRNA during protein synthesis process.

So, the correct answer is option A.