Nucleotide - Wikipedia
网页Nucleotides are organic molecules composed of a nitrogenous base, a pentose sugar and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are essential biomolecules within all life-forms on Earth.
Nucleotide - Definition, Structure (3 Parts), Examples & Function
网页2019年10月4日 · A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, metabolism, and enzyme reactions. A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base.
Nucleotide - National Human Genome Research Institute
网页2 天之前 · A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T). In RNA, the base uracil (U) takes the place of thymine.
Nucleotide Definition, Structure, and Function - Science Notes and …
网页2023年8月31日 · A nucleotide is an organic molecule made of a nitrogenous base, pentose sugar, and phosphate group. Nucleotides are ubiquitous in biology, serving as the foundation of genetic material and fulfilling other essential roles in cells. Take a look at what a nucleotide is, its structure, and its function in biological processes.
Nucleotide | Description, Types, Function, & Facts | Britannica
网页2024年8月16日 · A nucleotide is 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 phosphate group.
Nucleotide: Structure, Examples and Function - BYJU'S
网页A nucleotide is an organic molecule with a basic composition of a nitrogenous base, pentose sugar and phosphate. DNA and RNA are polynucleotides, which contain a chain of nucleotides monomers with different nitrogenous bases. Nucleotides are essential for carrying out metabolic and physiological activities.
6.6: Nucleotides - Biology LibreTexts
网页2024年3月21日 · Nucleotides are most often thought of as the building blocks of the nucleic acids, DNA and RNA. While this, is, of course, a vital function, nucleotides also play other important roles in cells. …
2.5: Nucleotides - Biology LibreTexts
网页Nucleotides, the building blocks of RNA and DNA, are themselves composed of a pentose sugar attached to a nitrogenous base on one side and a phosphate group on another.
Nucleic acid | Definition, Function, Structure, & Types
网页2024年9月9日 · Nucleic acids are long chainlike molecules composed of a series of nearly identical building blocks called nucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose (five-carbon) sugar, which is in turn attached to a phosphate group.
11.1: Structure and Function - Nucleic Acids - Biology LibreTexts
网页2021年8月23日 · The term nucleotide refers to the building blocks of both DNA (deoxyribonucleoside triphosphates, dNTPs) and RNA (ribonucleoside triphosphates, NTPs). In order to discuss this important group of molecules, it is necessary to define some terms. Nucleotides contain three primary structural components.