Assertion: guanine's form | /r/HasProperty | ketose
Facets:
Source sentences:
text: The cyclic molecule has a hemiacetal or hemiketal group, depending on whether the linear form was an aldose or a ketose.
text: A reducing end of a carbohydrate is a carbon atom that can be in equilibrium with the open-chain aldehyde (aldose) or keto form (ketose).