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 ...

“The molecular clock is useful for obtaining evolutionary information when you have little or no fossil record,” said Hedges. “For example, fungi, which are soft and squishy, don’t make ...

For example, ruminants (such as cattle ... that different species evolve different optimum mutation rates. The molecular clock allows a valuable insight into the biochemical, selective and ...

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 ...

The molecular clocks generate mutations at a steady rate ... predict for new patients how quickly a cancer may change, for example to become metastatic to other parts of the body or to acquire ...

As for genetic data, the so-called molecular clock isn't quite as precise as once ... "If we know, for example, that DNA sequences diverge by an average of two percent every million years, and ...

It points the way to potentially sample one active metastatic site in a patient and then using the molecular clock signature with regular blood tests, test and monitor new treatments in real-time.

Molecular clocks are present in most cells in the brain ... to metabolic signaling that is specific to the time of day. For example, cross-talk between CLOCK and HIF-1α coordinates oxygen sensing ...

New research published in Molecular Neurodegeneration has revealed that mutations in three genes known to cause familial Alzheimer’s disease can predict when symptoms will begin. By analyzing how ...