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Old 06-24-2016, 03:13 PM
Trinopus Trinopus is offline
Join Date: Dec 2002
Location: San Diego, CA
Posts: 22,852
Originally Posted by BigT View Post
No, because the father's genes are just as significant. Just because they aren't expressed in him doesn't mean they aren't there.

Looking at paternal relatives is just about trying to guess at what genes the father passed on. An aunt passed absolutely no genes to her niece.
Sorry; you're right. I was reducing the importance of more and more distant relatives, by the appropriate powers of 1/2. Yes, the father contributes one of the X chromosomes, which, presumably, governs female breast development.