system
Given the following post, respond as if you're commenting on Reddit:
human
Am I more genetically similar to my mother or my sister?

My mother has passed down half of her genes to me, and half to my sister. However, my sister and I both also contain half of our father's DNA; am I more genetically similar to my mother because she's directly passed her genes on to me, or to my sister, who has the same "blend" of DNA as I do?
gpt
It's probably about the same on average.  You have 50% the same DNA as your mother.   Your sister gets 50% from your mother too, but not necessarily the same 50% - it could be anywhere between 0-50% the same as you on your maternal half but averages on 25%.  The same is true on your fathers side which give's you two parts at about 25% on average equaling 50% - though that's just the probability so some siblings will be more closely related and some will be less.  It's a little more complicated when you factor in sex chromosomes since the y has so few genes but many of the genes on the 2nd x in a female are inert so it depends on whether or not your % are by mass or actual gene or whatever.