Purine

Science / Biology / Purine: One of the groups of nitrogenous bases that are part of a nucleotide. Purines are adenine and guanine, and are double-ring structures.

Barr Body

Science / Biology / Barr Body: Inactivated X-chromosome in mammalian females. Although inactivated, the Barr body is replicated prior to cell division and thus is passed on to all descendant cells of the embryonic cell that had one MORE

Guanine

Science / Biology / Guanine: One of the nitrogenous bases in nucleic acids, guanine is one of the two purine bases. MORE

Links
Home
Glossary
Thesaurus