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They are the energy currency in metabolic transactions, the essential chemical links in the response of cells to hormones and other extracellular stimuli, and the structural components of an array of enzyme cofactors and metabolic intermediates.
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A segment of a DNA molecule that contains the information required for the synthesis of a functional biological product, whether protein or RNA, is referred to as a gene.
Nucleotides have a variety of roles in cellular metabolism.
They are the constituent of nucleic acids: deoxyribonucleic acid and ribonucleic acid, the molecular repositories of genetic information.
The structure of every protein, and ultimately of every biomolecule and cellular component, is a product of information programmed into the nucleotide sequence of a cell's nucleic acids.
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