Nucleic acid | Definition, Function, Structure, & Types | Britannica
nucleic acid, naturally occurring chemical compound that serves as the main information-carrying molecule of the cell and that directs the process of protein synthesis, thereby determining the …
Nucleic acid - DNA, Genes, Molecules | Britannica
2024年11月22日 · Nucleic acid - DNA, Genes, Molecules: DNA is a polymer of the four nucleotides A, C, G, and T, which are joined through a backbone of alternating phosphate and …
nucleic acid summary | Britannica
nucleic acid, Any of the naturally occurring chemical compounds that are capable of being broken down to yield phosphoric acid, sugars, and a mixture of organic bases (purines and …
Nucleic acid - Metabolism, Structure, Function | Britannica
2024年11月22日 · Nucleic acid - Metabolism, Structure, Function: Replication, repair, and recombination—the three main processes of DNA metabolism—are carried out by specialized …
DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...
2025年1月14日 · Deoxyribonucleic acid (DNA) is an organic chemical that contains genetic information and instructions for protein synthesis. It is found in most cells of every organism. …
Nucleotide | Description, Types, Function, & Facts | Britannica
2025年1月3日 · A brief treatment of nucleotides follows. For full treatment, see nucleic acids. In the two families of nucleic acids, RNA(ribonucleic acid) and DNA (deoxyribonucleic acid), the …
Nucleic acid Definition & Meaning | Britannica Dictionary
NUCLEIC ACID meaning: any of various acids (such as DNA or RNA) that are found in living cells
Nucleic acid - Methylation, DNA, RNA | Britannica
2024年11月22日 · Nucleic acid - Methylation, DNA, RNA: Three types of natural methylation have been reported in DNA. Cytosine can be modified either on the ring to form 5-methylcytosine or …
Nucleic acid - RNA Metabolism | Britannica
2024年11月22日 · Nucleic acid - RNA Metabolism: RNA provides the link between the genetic information encoded in DNA and the actual workings of the cell. Some RNA molecules such …
Nucleic acid - Recombination, DNA, RNA | Britannica
2024年11月22日 · Nucleic acid - Recombination, DNA, RNA: Recombination is the principal mechanism through which variation is introduced into populations. For example, during …