title: DNA replication in polytene chromosomes of Drosophila pseudoobscura: new facts & their implications.
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000378:metabolism*; D004261:DNA Replication; D004330:Drosophila / Q000378:metabolism; D013936:Thymidine / Q000378:metabolism*
chemical_list: D013936:Thymidine