isochore


isochore

[′ī·sə‚kȯr] (physics) A graph that shows the variation of one quantity with another; for example, the variation of pressure with temperature, when the volume of the substance is held constant. Also known as isochor; isometric.

isochore

[′īs·ə‚kȯr] (genetics) In mammals and birds, an organizational unit of chromosome DNA that is usually characterized by a fairly constant proportion of guanine-cytosine base pairs throughout its length (usually 200-1000 kilobase pairs long); genes are concentrated in the G-C rich isochores.