Normal male. G-banding karyotype showing 22 pairs of autosomes plus the X and Y sex chromosomes.
Normal female. G-banding karyotype showing 22 autosome pairs plus two X sex chromosomes.
Normal female, spectral karyotype (SKY). Upper image. Spectral metaphase spread. Lower image. Spectral karyotype. Each autosome pair and the two X chromosomes are painted with a different color permitting identification of chromosome parts participating in translocations or other interchromosomal structural abnormalities.