trans

trans /trans / (tranz)

1. in organic chemistry, having certain atoms or radicals on opposite sides of a nonrotatable parent structure.

2. in genetics, denoting two or more loci occurring on opposite chromosomes of a homologous pair. Cf. cis.

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trans (trns, trnz)

adj.

Having two genes, each carrying a mutation, located on opposite chromosomes of a homologous pair.

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trans,

pref. Latin prefix for
across.

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trans

1. in organic chemistry, having certain atoms or radicals on opposite sides of a nonrotatable parent structure.

2. in genetics, having unlike members of a pseudoallelic, or closely linked, gene pair on the same member of a pair of homologous chromosomes. Compare cis.

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trans acting

in molecular biology a sequence or regulatory protein that is produced on one DNA molecule and acts on another, e.g. a sequence on one chromosome produces a regulatory protein that regulates expression of a gene on another chromosome. See also cis acting.