Johann Gregor Mendel, (20 yulyu 1822 - 6 yennayer 1884), yella d ameɛkuf akatuliki deg udir (monastère) n Saint-Thomas di Morava, am akken i d-yelha daɣen d tussna n yemɣan imi yeɣra deg tfellaḥt ; yeqdec s talmanit maca tiɣelnit-is d tuṭricit. Yettwaḥsab ɣur waṭas belli d netta i d ababat n tussna n tjinitit, imi sɣur-s i d-yekka wayen iwumi qqaren tura isuḍaf n Mendel, i d-yesbeyyinen amek ttɛeddin ijinen si tsuta ɣer tayeḍ.