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Ble koulè avèg (souvan pale tankou avèg jòn koulè ble) trè ra, se konsa ra ke se sèlman 5% nan koulè moun ki avèg soufri nan men li. Kontrèman ak avèg wouj koulè vèt, chans pou yo gen koulè ble avèg la an menm tou kòm gason ak jèn fanm sa a jwenn sou diferan kwomozòm yon ( kwomozòm 7). Gene sa a pataje menm lè fanm ak gason ak koulè ble avèg soti nan yon mutasyon sa a Gene.
eng
Blue color blindness (often referred to as blue yellow color blindness) is extremely rare, so rare that only 5% of color blind people suffer from it. Unlike red green color blindness, the chance of having blue color blindness is equal in both men and women as the gene is found on a different chromosome ( chromosome 7). This gene is shared equally by men and women and blue color blindness comes from a mutation of this gene.