Two chromosomes down, 22 to go.
Roberts
L
L
D002874:Chromosome Mapping / Q000379:methods; D015825:Chromosomes, Fungal; D002891:Chromosomes, Human, Pair 21; D005602:France; D015723:Gene Library; D005819:Genetic Markers; D016045:Human Genome Project / Q000191:economics; D006801:Humans; D016324:Sequence Tagged Sites; D014481:United States; D014998:Y Chromosome
D005819:Genetic Markers