Who are we most related to [in what order]?

Question

My question kinda sounds confusing, I know.

But I want to know who are we related to the most then to the least, like who we share more blood with.

Would it be :

siblings, parents, grandparents, cousins, aunts / uncles [just an example, so you get what i'm saying]

or something other than that ?

Answer 1

I think siblings, cause you have same blood from both parents.

Answer 2

Legally, it would be parents first then siblings.  Genealogy wise, you and full siblings share exactly the same ancestry. You share 1/2 of each parent, then 1/4th of each grandparent.  Aunts/uncles would be close genetically to each of your parents, then cousins. But they would not be the same as parents, since you come directly from the parents.

After a while, of course.. genealogists simply give up and get charts or computer programs to figure it all out.

Answer 3

Read the book, "Trace Your Roots with DNA" by Megan Smolenyak Smolenyak and Ann Turner.  

In short, your parents, children and siblings each share 50% of your DNA; grandchildren, grandparents and 1st cousins each share 25% as well as aunts and uncles.