It's been a while since I took biology, but doesn't this depend on the genders of the siblings?
Two male brothers have XY, and the Y would have to be shared with the father, and same with two sisters (X from father), but a brother and sister would get a minimum of 50% different as the X and Y from the father would be different?
In humans, y is so small as to be insignificant in these terms. ChrX is much larger. Also, the combination of the remaining chr1-22 are much larger than chrX by itself, so these numbers don’t factor in as much as you’d think.
Rough scale example:
XXXXXXXXXXXXXXXXXXXXXXX
YY
Re:Study: Most Dog Breeds Highly Inbred
by ErikVandeWater on Friday December 03, 2021 @10:59AM
(#29431421)
Off topic, but I very much enjoy the creativity you used to explain the relative size of the chromosomes.
> The average inbreeding based on genetic analysis across 227 breeds was close to 25%, or the equivalent of sharing the same genetic material with a full sibling
Full siblings would actual share approximately 50%.