Question

XNA is laboratory made nucleic acid made of nucleotides in which one component has been replaced by chemical X. The chemical X is mot found in nature. The part of molecule responsible for coding is not changed. Which organic compound of DNA or RNA nucleotide has been replaced by X? (a) 5-carbon sugar (b) phosphate group (c) purine base (d) pyrimidine base​

Answer 1

Answer:

Xeno nucleic acids (XNA) are synthetic nucleic acid analogues that have a different sugar backbone than the natural nucleic acids DNA and RNA.[1] As of 2011, at least six types of synthetic sugars have been shown to form nucleic acid backbones that can store and retrieve genetic information. Research is now being done to create synthetic polymerases to transform XNA. The study of its production and application has created a field known as xenobiology.