Respuesta :
A nitrogenous base (A, G, T, or C in DNA; A, G, U, or C in RNA), a phosphate molecule, and a sugar molecule make up a nucleotide, which is a subunit of DNA or RNA (deoxyribose in DNA, and ribose in RNA).
Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual may be found in almost all of their cells. Deoxyribonucleic acid is a polymer made of two polynucleotide chains that coil around one another to create a double helix and which contains the genetic material necessary for all known creatures, including many viruses, to develop, function, grow, and reproduce.
All living cells contain ribonucleic acid (RNA), a nucleic acid with properties comparable to those of DNA. However, RNA is often single-stranded, unlike DNA. Instead of the deoxyribose present in DNA, the backbone of an RNA molecule is made up of alternating phosphate groups and the sugar ribose.
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