Molecular biology

Molecular biology

Contributors in Molecular biology

Molecular biology

A technique to select a bacterial strain with a desired genetic trait; a mixture of cells is streaked on to a solid support and the resultant colonies are screened (e.g. for antibiotic resistance or ...

Alu sequence

Biology; Biochemistry

A small interespersed repeat element (SINE); a repetitive sequence in human DNA found in some introns, and characterised by Alu restriction sites; the locus of some homologous recombinations. ...

Induction

Biology; Biochemistry

The production of an enzyme in response to the presence of a particular compound, the inducer, or a condition, e.g. heat. In developmental biology, induction is the effect of one group of cells upon ...

Enhancing screen

Biology; Biochemistry

A device to enhance the sensitivity of autoradiography; the surface that is to be visualised is sandwiched between a photographic film and the screen, which is a film impregnated with a phosphor that ...

Ambidexteran

Biology; Biochemistry

An aggregate of glycosaminoglycans that, unless prevented by steric hindrance or over- or under-sulphation, presents one or both surfaces of their tape-like shape to the complementary surface of ...

Sliding filament model

Biology; Biochemistry

A conceptualization of muscle contraction in which thick filaments in the centre of a sarcomere are surrounded by thin filaments that are attached to the ends of the sarcomere and extend towards its ...

Stopped-flow

Biology; Biochemistry

A rapid mixing technique for observation of fast reactions, usually in the millisecond range. Two syringes holding solutions that must be mixed to initiate the reaction are emptied by a single piston ...