Cis

Definition of Cis from the PharmacyDictionary.in

Cis

1. A prefix meaning on this side, on the near side opposite of trans. 2. In genetics, a prefix denoting the location of two or more genes on the same chromosome of a homologous pair. 3. In organic chemistry, a form of isomerism in which similar functional groups are attached on the same side of the plane that includes two adjacent, fixed carbon atoms.

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