Attempts to induce crossing-over in Drosophila melanogaster males with ovarian extracts.
D000818:Animals; D002875:Chromosomes / Q000187:drug effects*; D004330:Drosophila / Q000254:growth & development*; D005260:Female; D005823:Genetics; D008297:Male; D010053:Ovary; D014020:Tissue Extracts / Q000494:pharmacology*
D014020:Tissue Extracts