We inherit different proportions of DNA >from our two parents --that is
why it is so important to test siblings. >from matches on different
sides of my family, I can see that my sister has more DNA >from our
maternal side than I do, and thus has stronger matches on that side as
a consequence. I can see that in cousins who have tested -- some more
closely match the side of the family through which we are related.
Hope this is helpful. There are articles online that address this -
perhaps someone else will post some links.
New Hampshire, USA