title: No EXSCEUS.
authors.forename: J A
authors.initials: JA
authors.lastname: Graves
mesh_terms: D000818:Animals; D001483:Base Sequence; D005075:Biological Evolution; D002874:Chromosome Mapping; D002891:Chromosomes, Human, Pair 21; D017124:Conserved Sequence; D006801:Humans; D008322:Mammals; D008394:Marsupialia