the most important consideration is how to calibrate the molecular clock. Assume, for example, that researchers have two DNA sequences that have a content difference of 5%. From this information ...

Table 1 Sample of Bayesian programs that use the molecular clock to estimate divergence times * Figure 3: Three relaxed clock models of rate drift.

Palaeontologists use the molecular clock technique to unveil deep history, often in groups with poor fossil records. For example, penguins are known to be descended from a recent (geologically ...

New research published in Molecular Neurodegeneration has revealed that mutations in three genes known to cause familial ...

Another example is shift work ... In humans, light is not perceived directly by the molecular clock, but is captured in the retina and then transmitted via the retino-hypothalamic pathway to ...

Young for their discoveries of molecular mechanisms controlling ... our external environment and this internal biological clock, for example when we travel across several time zones and experience ...

Now, researchers at Penn have provided the first evidence for the role of our body's internal molecular clock in controlling blood pressure and a mechanism by which this occurs. This report points ...