The molecular clock is a technique that uses the mutation rate of biomolecules to
deduce the time in prehistory when two or more life forms diverged.
Since its proposal in the 1960s, the molecular clock has become an essential tool
in many areas of evolutionary biology, including systematics, molecular ...
Molecular Clocks. For the past 40 years, evolutionary biologists have been
investigating the possibility that some evolutionary changes occur in a clock-like
Nov 20, 2008 ... It doesn't tick, it doesn't have hands, and it doesn't tell you what time of day it is.
But a molecular clock does tell time -- on an epoch scale.
Sep 15, 2015 ... Scientists across a range of biological disciplines use a technique called the
molecular clock, where the past is deciphered by reading the ...
The molecular clock hypothesis originally restedon the assumption of rate
constancy across lineages of a phylogeny, which would produce an
a measure of evolutionary change over time at the molecular level that is based
on the theory that specific DNA sequences or the proteins they encode ...
the changes in the amino acid sequences of proteins that take place during
evolution and speciation, and from which the dates of branchings of taxonomic ...
Such proteins can be used as ``molecular clocks,'' since one can use them to
estimate when species diverged. However, these clocks sometimes behave in an
Molecular Clocks. Rose Hoberman. The Holy Grail. Fossil evidence is sparse
and imprecise (or nonexistent). Predict divergence times by comparing molecular