<biochemistry> Hexose identical to glucose except that orientation of H and OH on carbon 4 are exchanged.

A component of cerebrosides and gangliosides, glycoproteins. Lactose, the disaccharide of milk, consists of galactose joined to glucose by a _(1-4) glycosidic link.

This entry appears with permission from the Dictionary of Cell and Molecular Biology

(11 Mar 2008)