title: Chiasma and univalent frequencies in aging female mice.
mesh_terms: D000375:Aging; D000818:Animals; D002875:Chromosomes; D003434:Crossing Over, Genetic; D005260:Female; D008540:Meiosis; D051379:Mice; D008810:Mice, Inbred C57BL; D008813:Mice, Inbred ICR; D010063:Ovum; D013045:Species Specificity