Question

XNA is a laboratory - made nucleic acid made of nucleotides in which one component has been replaced by chemical X. The chemical X is not found in nature. The part of the molecule responsible for coding is not changed . Which organic component of a DNA or RNA nucleotide has been replaced by X ?

Answer 1

Answer:

5Xeno nucleic acids (XNA) are synthetic nucleic acid analogues that have a different sugar backbone than the natural nucleic acids DNA and RNA. ... Thus the genetic information stored in XNA is "invisible" and therefore useless to natural DNA-based organisms.