3rd chromosome nondisjunction is elevated in Cap-H2 fertile males.

��n�� refers to the number of males tested.1Diplo-3 (het) refers to sperm that were heterozygous for the paternal male's 3rd chromosome loci.2Diplo-3 (homo) sperm were homozygous for the paternal male's third chromosome loci.3ND refers to a class of F1 progeny with genotypes that were ��not determinable�� because the flies died before they could be test crossed or the markers of the F2 progeny could not distinguish between classes.4In the testing of the Cap-H2Z3-5163/Cap-H2Z3-5163 males, diplo-3 (het) and diplo-3 (homo) progeny were indistinguishable because they are genotypically identical for third chromosome loci.