Female 46,XX Male 46,XY Human chromosomal abnormalities may be numerical or structural. Numerical Total chromosomes cell Trisomy 3 copies of a single chromosome 47 Monosomy 1 copy of a single chromosome 45 Triploidy 3N 69 Tetraploidy 4N 92 Structural Deletion Duplication Translocation (involves 2 chromosomes)Female Male 46,XX 46,XY Human chromosomal abnormalities may be numerical or structural. Numerical Trisomy = 3 copies of a single chromosome 47 Monosomy = 1 copy of a single chromosome 45 Triploidy = 3N 69 Tetraploidy = 4N 92 Structural Deletion Duplication Translocation (involves 2 chromosomes) Total # chromosomes / cell