To do better you'll need additional information we don't have (eg at the moment, no one can sequence a genome and extract an accurate predicted intelligence).
Actually, we could get some information that would help here- IQ up the ancestral tree. The correlation between grandparent and grandchild IQ is higher than one would expect from stacking two independent parent-child relationships.
Yes. I'm not sure how much they'd add; I ran into an interesting observation about this with regard to estimating cows' milk production based on their relatives and on SNPs, where the comparison runs the other direction:
...The R^2 values were converted to realized reliabilities by dividing by mean reliability of 2008 daughter deviations and then adding the difference between published and observed reliabilities of 2003 parent averages. When averaged across all traits, combined genomic predictions had realized reliabilities that were 23% greater than reliabi
This image recently showed up on Flickr (original is nicer):
With the caption:
"Awww!", I said, and called over my girlfriend over to look.
"Awww!", she said, and then looked at me, and said, "I think you need to take your own advice!"
Me: "But I'm looking at the zebra!"
Her: "On a computer!"
Me: (Turns away, hides face.)
Her: "Have you ever even seen a zebra in real life?"
Me: "Yes! Yes, I have! My parents took me to Lincoln Park Zoo! ...man, I hated that place."
Part of the Joy in the Merely Real subsequence of Reductionism
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