Agents of Evolutionary Change. The Five Forces of Evolution and How We Measure Them. I. What is Evolution? . First, remember that… Evolution is a two-stage process: Production and redistribution of variation (inherited difference between individuals).
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The Five Forces of Evolution and How We Measure Them
Evolution is a two-stage process:
example: About 1 in in 12,000 babies carry the homozygous form of the allele for PKU (phenylketonuria). Without early detection and treatment, this disorder will lead to mental retardation.
e.g. African Americans are largely of West African descent, but there has been considerable influx of alleles from non-African populations.
NONE OF THE FOLLOWING CAN OCCUR:
Factors affecting skin color
Vitamin D needs, cancer, and folate
Excess dietary pigment can change color
Short term responses (I.e. tanning)
What your parents pre-determined about you
cultural variations are inherited in the same manner as biological variations
Galton’s "race improvement" through forced sterilization & encouraged reproduction
One or many origins for humanity (A&E?)