This has been discussed in at least one question before, but not directly addressed, at least not on this site.
Is there any actual connection between blood lines and Force sensitivity? We certainly see hints of that with both of Anakin's children showing Force sensitivity. Do patterns like that show in other families? Is there any indiction that Force sensitivity can be hereditary in some species or in some families?
(I'm not asking if it is always hereditary or always following blood lines, but is there enough to show this can be a notable factor in whether someone is sensitive or not.)