Wednesday, November 15th, 2006
Are genes becoming more important with increasing age?
I found an apparent paradox between two studies. John Whitfield did a twin study in Australia and concluded that shared environmental effects decreased with age (from about 50% to 10%) while additive genetic effects increased. The new Sardinian study found higher heritabilities among younger individuals and explained that by an increase of environmental insults with age. Nice said, but who is right?
Related Posts: Once again genetic testing, No fool like an old fool, Bigger is better, The Rosetta stone and the genetic code