Nucleic acid | chemical compound | Britannica.com
Nucleic acid, naturally occurring chemical compound that is capable of being broken down to yield phosphoric acid, sugars, and a mixture of organic bases (purines and pyrimidines).Nucleic acids are the main information-carrying molecules of the cell, and, by directing the process of protein synthesis, they determine the inherited characteristics of every living thing.
Nucleic Acids - Types, Structure, and Function
In nucleic acid dehydration synthesis, nitrogenous bases are joined together and a water molecule is lost in the process. Interestingly, some nucleotides perform important cellular functions as "individual" molecules, the most common example being ATP.
Nucleic acid - Wikipedia
Nucleic acid types differ in the structure of the sugar in their nucleotides–DNA contains 2'-deoxyribose while RNA contains ribose (where the only difference is the presence of a hydroxyl group). Also, the nucleobases found in the two nucleic acid types are different: adenine, cytosine, and guanine are found in both RNA and DNA, while thymine ...
Nucleic acid | Define Nucleic acid at Dictionary.com
Nucleic acid definition, any of a group of long, linear macromolecules, either DNA or various types of RNA, that carry genetic information directing all cellular functions: composed of linked nucleotides. See more.
Nucleic acid - definition of nucleic acid by The Free ...
nucleic acid - (biochemistry) any of various macromolecules composed of nucleotide chains that are vital constituents of all living cells biochemistry - the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry
Nucleic acid - an overview | ScienceDirect Topics
Publisher Summary. Nucleic acid is composed of individual acid units termed nucleotides. Each repeating unit in a nucleic acid polymer comprises three units linked together—a phosphate group, a sugar, and one of the four bases. The bases are planar aromatic heterocyclic molecules and are divided into two groups—the pyrimidine bases thymine and cytosine and the purine bases adenine and guanine.
Nucleic Acids - Department of Chemistry
The high molecular weight nucleic acid, DNA, is found chiefly in the nuclei of complex cells, known as eucaryotic cells, or in the nucleoid regions of procaryotic cells, such as bacteria. It is often associated with proteins that help to pack it in a usable fashion.
Nucleic Acid | Definition of Nucleic Acid by Merriam-Webster
Nucleic acid definition is - any of various complex organic acids (such as DNA or RNA) that are composed of nucleotide chains. any of various complex organic acids (such as DNA or RNA) that are composed of nucleotide chains… See the full definition
Nucleic acid - New World Encyclopedia
A nucleic acid is a polymer comprising numerous nucleotides (each composed of a phosphate unit, a sugar unit, and a "base" unit) linked recursively through the sugar and phosphate units to form a long chain with base units protruding from it. As found in biological systems, nucleic acids carry the ...
Nucleic Acid - Dallas County Community College District
Nucleic Acid Structure and Function. DNA polymers store hereditary information for each living organism. The unique structure of a DNA polymer provides a template for identification and delivery of the information inside each gene and for accurate replication of DNA during cell division.