cis

Definition

Having two mutations on two genes on the same chromosome of a homologous pair.

Etymology

From Latin cis (“on this side (of), on the near or same side”). Doublet of he, it, here, hither, and hence.

Example Sentences

• "9 is thought to survive longer when the CH = CH bond is cis and to favour the formation of another cis double bond in a propagation reaction involving its displacement by monomer. 10, on the other hand, is more likely to yield a trans double bond […]"
• "However, a cis double bond causes a kink in the chain. (A cis double bond introduces a bend of about 42 into the linear hydrocarbon chain.)"
• "A cis double bond is one where the hydrogen atoms are both on the same side. In contrast, a trans double bond has them on the opposite side."

Related Words