What is the molecular clock? Levels of molecular variation could be used, in principle, to estimate divergence times, serving as evolutionary "clocks" that "tick" at different rates. Subsequent ...

Is there really such a molecular clock? If so, why? Can we use molecular clocks to date evolutionary events? After several decades of study, we have answers to some of these questions. More ...

Clock genes are almost a given when an organism ... Sondhi was seeing the process of evolution. “If this is functionally ...