Molecular biology

Molecular biology

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Molecular biology

Synchronous growth

Biology; Biochemistry

The co-ordinated passage through the cell cycle of a large mass of cells; sometimes achieved by experimental starvation of the cells to bring them all to the start of S phase, then relieving the ...

Axial ratio

Biology; Biochemistry

A measure of the asymmetry of a macromolecule, assumed to be an ellipsoid, given by the ratio of the major axis to the minor axis; it is evaluated from physical properties, e.g. hydrodynamic ...

A blue light- and ultraviolet-A-sensitive receptor protein, containing pterin and flavin prostehetic groups; found ubiquitously in plants and in mammals, and linked to the circadian response of these ...

Liposome

Biology; Biochemistry

A synthetic micelle formed by dispersion of a polar lipid in aqueous solution in such a way that it forms into lipid-bilayer-encapsulated vesicles; useful for packaging of drugs or enzymes for ...

Thiolysis

Biology; Biochemistry

In β-oxidation, cleavage of the bond between the β- and γ-carbons by coenzyme A to form acetyl-coenzyme A from carbons α and β and a coenzyme A thioester from the alkyl-carbonyl moiety, i.e. carbons ...

Human artificial chromosome (HAC)

Biology; Biochemistry

An artificial assembly of chromosome features, telomere, centromere, etc., that is used to test the minimum features required for replication in transfected cells. The mammalian artificial chromosome ...

Nitrogen fixation

Biology; Biochemistry

The reduction of molecular nitrogen to ammonia and nitrogen-containing metabolites that is carried out synthetically, or naturally by blue-green algae or bacteria, e.g. Rhizobium species that inhabit ...