214 NATURAL INHERITANCE.
TABLE 18.
EXAMPLE OF ONE CALCULATION IN EACH OF THE THREE CASES.
I. |
II. |
III, |
|||||||
Ancestry and their eye-colours. |
o g b 0 ob |
Contribute to |
0 ~ o~ ro |
Contribute |
to |
8 g 4~ o ~a ~ro c |
Contribute |
to | |
z |
Light. |
Dark. |
z |
Light. |
Dark. |
Light. |
Dark. | ||
Light-eyed parents, Hazel-eyed parents. Dark-eyed parents. Light-eyed grand parents Hazel-eyed grand parents Dark-eyed grand parents Residue, rateably as signed Total contributions |
2 ... ... ..• .. ... |
0.60 .•. ... ... 0'28 0.88 |
... ... ... .., ... 0.12 0.12 |
... 1 2 1 |
... 0.16 0.20 ... 0.25 0'61 |
.,. ... 0-12 0.16 0-11 0.39 |
1 I 1 2 1 |
0.16 ... 0'08 0'10 ... 0.12 0.46 |
0'09 0'25 ... 0-06 0-08 0'06 0'54 |
1.00 |
1.00 |
1.00 |