19 MAY 2011 by ideonexus

 Mendelian Genes are All-Or-Nothing

A Mendelian gene is an all-or-nothing entity. When you were conceived, what you received from your father was not a substance, to be mixed with what you received from your mother as if mixing blue paint and red paint to make purple. If this were really how heredity worked (as people vaguely thought in Darwin's time) we'd all be a middling average, halfway between our two parents. In that case, all variation would rapidly disappear from the population (no matter how assiduously you mix purple ...
Folksonomies: genes inheritance mendel
Folksonomies: genes inheritance mendel
  1  notes

Genes are on-off switches, carrying either mother or father's version of it, not a blend of the two.