Question

Which of the following statement is not true about RNA?

• A. It controls the synthesis of protein
• B. It has always double stranded $\alpha -$ helix structure
• C. It can replicate
• D. It is present in the nucleus of the cell

Answer 1

The correct option is B It has always double stranded $\alpha -$ helix structure

RNA does not have double stranded $\alpha$-helix structure. Helixes present in RNA are single-stranded but sometimes they fold back on themselves to form a double helix structure. RNA has the ability to replicate. It is present in the nucleus of the cell. It controls the synthesis of protein. RNA molecules are of three types, i.e. messenger’s RNA (m-RNA), ribosomal RNA (rRNA), transfer RNA (t-RNA)