Influence of false twins on the ratios of twin and single sister chromatid exchanges.
D002842:Chromatids / Q000032:analysis; D003434:Crossing Over, Genetic; D004171:Diploidy; D008433:Mathematics; D008938:Mitosis; D011123:Polyploidy; D013936:Thymidine / Q000032:analysis; D014316:Tritium
D014316:Tritium; D013936:Thymidine