Cis dominance

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Cis dominance

(Science: molecular biology) When a gene or promoter affects only gene activity in the dna duplex molecule in which it is placed the effect is referred to as cis, as opposed to trans effects when a gene or promoter on one dna molecule can affect genes on another dna molecule. Cis dominance is seen only when the appropriate pair or set of genes are all cis to each other.