News From the Field
Caltech-led Team Shows How Evolution Can Allow for Large Developmental Leaps
July 20, 2009
Most evolutionary changes happen in tiny increments. But when it comes to traits, like the number of wings on an insect or limbs on a primate, there is no middle ground. How are these sorts of large evolutionary leaps made? According to a team led by scientists at Caltech, such changes may at least sometimes be the result of random fluctuations, or noise (nongenetic variations), working alongside a phenomenon known as partial penetrance.
California Institute of Technology
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