A computer notes the difference, and a laboratory tool that is generally ‘ used for blood work gives a positive electric charge to the X sperm and a negative charge to the Y sperm.
Arvuti registreerib erinevuse ning laboriaparaat, mida tavaliselt ’ kasutatakse vereproovide tegemiseks, annab X - sugurakule positiivse elektrilaengu ja Y - sugurakule negatiivse laengu.