[handwritten]
5
stantially modifies the offspring; there exists an "ancestral contribution" to the heritage.
[tabular material]
Grandparents & Offspring
DD & DR & RR & + & - & DD & DR & RR
4 & -- & -- & 4 -- & 1 & -- & --
3 & 1 & -- & 4 & -- & 6 & 2 & --
3 & -- & 1 & 3 & 1 & 2 & 2 & --
2 & 2 & -- & 4 & -- & 13 & 10 & 1
2 & 1& 1 & 3 & 1 & 8 & 14 & 2
2 & -- & 2 & 2 & 2 & 1 & 4 & 1
1 & 3 & -- & 4 & -- & 12 & 16 & 4
1 & 2 & 1 & 3 & 1 & 10 & 28 & 10
1 & 1 & 2 & 2 & 2 & 2 & 14 & 8
1 & -- & 3 & 1 & 3 & -- & 2 & 2
-- & 4 & -- & 4 & -- & 4 & 8 & 4
-- & 3 & 1 & 3 & 1 & 4 &16 &12
--& 2 & 2 & 2 & 2&1 & 10 & 13
-- & 1 & 3 & 1 & 3 -- & 2 & 6
-- & -- & 4 & -- & 4 & -- & -- & 1
[end tabular material]
Of course the gametic contribution RR follows precisely the same system of parentages, and is again influenced by ancestry.
If, however, we take the gametic contribution DR in such a population we find: