| Topic: |
Religions > Atheism |
| User: |
"DaveJr" |
| Date: |
18 Jan 2006 08:20:22 PM |
| Object: |
Mitochondrial DNA Clarifies Human Evolution |
Mitochondrial DNA Clarifies Human Evolution
By Max Ingman
"Where do we come from?" This has been one of the
fundamental questions asked by humans for thousands
of years. Physical anthropologists have been providing
an answer for over a hundred years by studying
morphological characteristics, such as skull shape,
of the fossilised remains of our human and proto-human
ancestors.
For the last 15 years or so, molecular anthropologists
have been comparing the DNA of living humans of
diverse origins to build evolutionary trees. Mutations
occur in our DNA at a regular rate and will often be
passed along to our children. It is these differences
(polymorphisms) that, on a genotypic level, make us
all unique and analysis of these differences will show
how closely we are related. However, different
approaches used by molecular and physical
anthropologists have led to opposing views on
how modern humans evolved from our archaic
ancestors.
http://www.actionbioscience.org/evolution/ingman.html
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