Molecular biology

Molecular biology

Industry: Biology

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Molecular biology

Gene

Biology; Biochemistry

In genetics, a unit inferred from the pattern of inheritance; in molecular biology, defined narrowly as a section of DNA that is expressed as RNA or, more widely, as a coding sequence of DNA and ...

Heat-shock consensus element (HSE)

Biology; Biochemistry

A 14 base pair polynucleotide sequence upstream from structural genes for heat-shock proteins, required for optimal expression. A somewhat longer polynucleotide sequence that includes flanking ...

A method for recovery of exons from random segments of cloned genomic DNA that depends upon passage through a retroviral life cycle; non-viral genomic DNA is spliced and may then be excised as cDNA ...

Methyl trap

Biology; Biochemistry

The accumulation of 5-methyltetrahydrofolate in vitamin B 12 deficiency or related conditions (e.g. pernicious anaemia) due to the inability to transfer the methyl group to homocysteine by the B 12 ...

Mobile carrier

Biology; Biochemistry

A proposed mechanism of membrane transport similar to the mobile barrier mechanism, but in which the porter is imagined to be a revolving door that accepts one (uniport) or two (symport) solutes, or ...

Epigenetic

Biology; Biochemistry

Literally, outside of the germ line; therefore characteristics passed from cells to progeny without altering germ line DNA, e.g. genetic imprinting and tissue-specific development in eukaryotes and ...

Siderophore

Biology; Biochemistry

A low-molecular-mass compound that binds to ferric ions and facilitates their absorption by the micro-organisms that produce them; e.g. enterobactin, the catechol derivative of some bacteria, and ...