In his work with albino children , he recognized that in some families where both parents carry a recessive mutation , no disease occurs by chance .
In his work with albino children , he recognized that in some families where both parents carry a recessive mutation , by chance no albino child occurs .
In his work with albino children , he recognized that in some families where both parents carry a recessive mutation , by chance no albino child occurs .
اجعل الجملة بسيطة: In his work with albino children , he recognized that in some families where both parents carry a recessive mutation , no disease occurs by chance . خرج: