Race doesn’t come into it: Am I My Mother-in-Law?
Meehan Crist, 25 October 2018
Before I got pregnant, I thought I understood how DNA works: parents pass on some combination of their DNA, which codes for various heritable traits, to their children, who pass on some combination to their children, and so on down the neat branching lines of the genealogical tree. What I didn’t know was that women can also receive DNA from their children.