Question

Which of the following is NOT true regarding nucleic acid?

• A. Nucleic acids are always genetic material for an organism when found inside a cell
• B. Nucleic acids are long chain macromolecules formed by end to end polymerisation of nucleotide monomers
• C. Nucleic acids of only one type are available in any organism
• D. Nucleic acids show secondary structures

Answer 1

Answer: (A), (C)

Nucleic acids are always genetic material for an organism when found inside a cell
Nucleic acids of only one type are available in any organism

A) nucleic acids are not always genetic material in a cell as many RNA molecules such as mRNA, tRNA are molecules which help in protein synthesis.

B) nucleic acids are made up of monomers as nucleotides into long-chain macromolecules.

C) only one type of nucleic acid is not seen in an organism because the nucleic acid could be DNA or RNA or many subtypes.

D) nucleic acid shows a secondary structure in the form of loops.

So, the correct option is A, C.