title: Isolation and mapping of a polymorphic DNA sequence for NRAS pMCR3 on chromosome 1.
mesh_terms: D002878:Chromosomes, Human, Pair 1; D004262:DNA Restriction Enzymes; D015246:Deoxyribonuclease EcoRI; D005799:Genes, Dominant; D006801:Humans; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length
chemical_list: D004262:DNA Restriction Enzymes; D015246:Deoxyribonuclease EcoRI