ANTB15H3 Chapter Notes -Stone Age, Antibiotics, Speciation

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2 Nov 2012
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The big picture on Evolution
Genetics provides the mechanism by which natural
selection occurs
The general principle of Darwinian evolution have been
widely accepted
Darwinian evolution raises controversy when for instance
quantum mechanics scarcely registers on the public
conciousness.
The Big picture looks at the theory of evolution, the
evidence supporting it, unanswered questions and
history of public reaction.
What forces control destiny of life on earth?
CULTURAL EVOLUTION:
One of the strongest cultural systems is language
that shows clear signs of evolutionary change
It can be difficult to disentangle biological and
cultural explanations
Neutral changes are important thanks to a random
process known as genetic drift
How much evolutionary change due to drift is not
certain
One of the strongest cultural systems is language
It can be difficult to disentangle biological and
cultural explanations
Neutral changes are important due to the genetic
process of neutral drift
How much evolutionary change is due to drift is not
certain
Changes in allele frequency due to chance have
probably had a big impact on people
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