Topic 3.3 Meiosis Miss Taylor Human karyotype- normal or abnormal? Human karyotype- normal or abnormal? Trisomy 21-Down’s syndrome Human karyotype- normal or abnormal? Trisomy 13- Patau syndrome Human karyotype- normal or abnormal? Trisomy 23- Klinefelter’s syndrome Human karyotype- normal or abnormal? Monosomy 23- Turner’s syndrome