Nucleic acid | Definition, Function, Structure, & Types | Britannica
2024年11月22日 · Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells. They play an especially important role in …
nucleic acid summary | Britannica
Nucleic acids direct the course of protein synthesis, thereby regulating all cell activities. The two main types, DNA and RNA, are composed of similar materials but differ in structure and …
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 …
DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...
3 天之前 · Each strand of a DNA molecule is composed of a long chain of monomer nucleotides. The nucleotides of DNA consist of a deoxyribose sugar molecule to which is attached a …
Nucleotide | Description, Types, Function, & Facts | Britannica
2024年11月22日 · nucleotide, any member of a class of organic compounds in which the molecular structure comprises a nitrogen-containing unit (base) linked to a sugar and a …
Life - DNA, RNA, Protein | Britannica
6 天之前 · The specific carrier of the genetic information in all organisms is the nucleic acid known as DNA, short for deoxyribonucleic acid. DNA is a double helix, two molecular coils wrapped …
Biomolecule | Definition, Structure, Functions, Examples, & Facts ...
2024年10月21日 · Among biomolecules, nucleic acids, namely DNA and RNA, have the unique function of storing an organism’s genetic code—the sequence of nucleotides that determines …
Nucleoside | Description, Function & Facts | Britannica
A nucleoside is a structural subunit of nucleic acids, the heredity-controlling components of all living cells, that consists of a sugar molecule linked to a nitrogen-containing organic ring …
Deoxyribose | DNA, Nucleic Acids, Sugars | Britannica
Deoxyribose, five-carbon sugar component of DNA (q.v.; deoxyribonucleic acid), where it alternates with phosphate groups to form the “backbone” of the DNA polymer and binds to …
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 …