Prior to Mendel's work, the dominant theory of heredity was one of blending inheritance, which proposes that the traits of the parents blend or mix in a smooth, continuous gradient in the offspring.

之前，孟德爾的工作国产精品理论一区，占主導地位的理論永久在线精品免费播放，遺傳是一個混合遺產，其中建議性狀父母混合或組合順利人人干人人操人人上人人搞，連續(xù)梯度的后代欧美女肏屄。