Mashoko Emuzasi

a Trisomy 21 chirwere chokuzvarwa nacho chinoita kuti munhu ave dera. Mumasero omunhu mune machromosome anenge akarongwa ari maviri maviri achisvika mapoka 23, asi vana vanozvarwa vaine trisomy 21 vanenge vaine rimwe chromosome rechitatu paboka rechi21.