Q166 / 200 · NEET 2004 · Zoology

Which form of RNA has a structure resembling clover leaf?

  • A
    $r$ RNA
  • B
    $h n$ RNA
  • C
    $m$ RNA
  • Correct answer
    D
    $t$ RNA.

Solution

The $t$ RNA molecule has a distinctive folded structure with three hairpin loops that form the shape of a threeleafed clover. One of these hairpin loops con tains a sequence called the anticodon, which can recognize and decode an $m$ RNA codon. Each $t$ RNA has its corresponding amino acid attached to its end. Related Theory The tRNA 5' to 3' primary structure contains the anticodon but in reverse order, since 3' to 5 ' directionality is required to read the mRNA from 5' to 3'. The T arm is a 4- to $5-b p$ stem containing the sequence $T \Psi C$ where $\Psi$ is pseudouridine, a modified uridine.

Hence, the correct answer is option: 'D'.

More Molecular Basis of Inheritance Questions