Abstract
Nucleic acids are essential biomolecules that store and transmit genetic
information in all living organisms. The structure of nucleic acids, specifically DNA
(deoxyribonucleic acid) and RNA (ribonucleic acid), is crucial for their function. The
backbone of nucleic acids is composed of alternating sugar and phosphate groups,
while the nucleotide bases (adenine, guanine, cytosine, thymine and uracil) protrude
from the sugar-phosphate backbone. The bases form specific hydrogen bonds with
complementary bases on the opposite strand, resulting in the double-helical structure of
DNA. RNA is usually single-stranded but can form secondary structures through base
pairing. The three-dimensional structure of nucleic acids is also important for their
function, as it determines the interactions between nucleic acids and other molecules,
such as proteins. Understanding nucleic acid structure is fundamental for many areas of
biology, including genetics, molecular biology and biotechnology.