What are the limitations of bending theories in genetics and evolution?

Hi SEHAR

I THINK YOU MEAN BLENDING THEORY. THE LIMITATION OF THIS THEORY IS:

THE THEORY SAYS THAT CHARACTERS FROM MOTHER AND FATHER BLENDS AND COME IN CHILDREN. BUT IT IS NOTICED THAT CHARACTERS FROM RELATIVES ARE ALSO SEEN IN CHILDREN. SO THE QUESTION ARISES THAT IF BLENDING OF CHARACTERS FROM PARENTS OCCURS ONLY, THEN WHY SOMETIMES CHARACTERS OF US MATCH WITH OUR GRANDPARENTS/ UNCLE/AUNT ETC.