JTG wrote:I posted this in the past on another website.
Genealogical chart shows how line-breeding and inbreeding can be used to perpetuate and concentrate desirable genes. By mating sire named Frankie to dams A, B, C and D, then mating resulting half-brothers and half-sisters, 50% of genes passed on to offspring in the next two generations are Frankie's. Thus Frankie is, in effect, the sire of generations II, III and IV. If generation III were bred directly back to Frankie, then the genes passed on to generation IV, or current offspring, would be 75% Frankie's.
CURRENT OFFSPRING
Generation IV PARENTS
Generation III GRANDPARENTS
Generation II GREAT-GRANDPARENTS
Generation I
8/16 F + 2/16 A + 2/16 B + 2/16 C + 2/16 D 8/16 F + 4/16 A + 4/16 B 8/16 F + 8/16 A Frankie
A
half-brother to half-sister
8/16 F + 8/16 B Frankie
B
8/16 F + 4/16 C + 4/16 D 8/16 F + 8/16 C Frankie
C
half-brother to half-sister
8/16 F 4- 8/16 D Frankie
D
We all realize that this isn't nearly the reality of what actually occurs genetically right?


