Toxicology

Toxicology

A branch of biology, chemistry, and medicine concerned with the study of the adverse effects of chemicals or physical agents on living organisms, as well as the symptoms, mechanisms, treatments and detection of poisoning, especially the poisoning of people.

Industry: Biology; Chemistry

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Toxicology

Extraction ratio

Biology; Toxicology

Amount of substance extracted from a source divided by the total contained within the source.

Excretion rate

Biology; Toxicology

Amount of substance and (or) its metabolites that is excreted divided by time of excretion.

Environmental transformation

Biology; Toxicology

Chemical transformation of substances resulting from interactions in the environment.

Founder effect

Biology; Toxicology

Changes in allelic frequencies that occur when a small group is separated from a large population and establishes a colony in a new location.

Epigenesis

Biology; Toxicology

Changes in an organism brought about by alterations in the expression of genetic information without any change in the genome itself (e.g. base hypermethylation or histone modification). Note: The ...

Diploid

Biology; Toxicology

Chromosome state in which the chromosomes are present in homologous pairs. Note: Normal human somatic (non-reproductive) cells are diploid (they have 46 chromosomes), whereas reproductive cells, with ...