title: Trisomy of chromosome No 13 in spontaneous mammary tumors of GR, C3H, and noninbred Swiss mice.
abstract: Karyotype analyses were conducted on spontaneous mammary tumors of 11 GR, 2 C3H, and 2 noninbred Swiss mice with the use of trypsin-Giemsa banding procedures. All tumors manifested trisomy of chromosome No 13 in most cells, and all except 1 tumor had cells with a model chromosome number of 40.
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations; D005260:Female; D008325:Mammary Neoplasms, Experimental / Q000235:genetics*; D051379:Mice; D008809:Mice, Inbred C3H; D014314:Trisomy; D014960:X Chromosome