nucleotide
A nucleotide is the basic structural unit of NUCLEIC ACIDS such as DNA and RNA, consisting of a NITROGENOUS BASE, a PENTOSE SUGAR, and one or more PHOSPHATE GROUPS.
A nucleotide is an organic BIOMOLECULE that serves as the fundamental building block of NUCLEIC ACIDS and plays essential roles in GENETIC INFORMATION storage, transfer, and cellular processes. Each nucleotide consists of a NITROGENOUS BASE attached to a PENTOSE SUGAR (either DEOXYRIBOSE in DNA or RIBOSE in RNA) and one or more PHOSPHATE GROUPS. Nitrogenous bases are classified into PURINES, including ADENINE and GUANINE, and PYRIMIDINES, including CYTOSINE, THYMINE, and URACIL. Nucleotides also function in cellular energy transfer through molecules such as ADENOSINE TRIPHOSPHATE (ATP).
• Nucleotides are the building blocks of DNA and RNA. • Each nucleotide contains: - A nitrogenous base. - A sugar molecule. - A phosphate group. • Bases are grouped into: - Purines: adenine and guanine. - Pyrimidines: cytosine, thymine, and uracil. • They carry genetic instructions needed for life. • Some nucleotides also store and transfer energy.
nucleotide