Answer the following questions (p106-111)

What argument does Monte Verde produce? Reasons/Evidence

List the ways humans migrated to America. Explain/Details

What does the Olsen Chubbuck site suggest about hunting patterns?

We’re Coming to America!!!

Human VariationWhy are there physical differences?

Natural Selection Directional shift

Average value will shift because it is beneficial. (Skin) Normalizing Selection

Average value will not shift, but the extremes are removed.

Balancing Selection Heterozygous (different) combinations of alleles is favored.

Genetic Drift Removal of less frequent “neutral” genes from isolated

groups.

Process of Human Variation

Gene Flow Passing of genes from one population to

another. Decreases differences.

Cline – variation in frequency

Influence of the Environment Climate may influence growth and

development Influence of Culture

Modifications to life may affect genetic adaptations.

Take notes on the following from Ch. 7

Body Build Facial Construction Skin Color Adaption to High Altitude Height Infectious Diseases Sickle-Cell Anemia Lactase Deficiency

Variation in Populations

Body Build Bergman’s Rule

Body size and temperature. Allen’s Rule

Length of limbs based on temperature/climate Facial Construction

Size of the nose based on climate (humid – short flat nose) Skin Color

Gloger’s Rule People living in warmer climates have more melanin.

Adaption to High Altitude Theory of larger chests, greater lung capacity.

Variations in Population

Height Temperature Nutrition

Infectious Diseases Develop inherited resistance to diseases.

Sickle-Cell Anemia Abnormality of red blood cells. (connection w/

malaria) Lactase Deficiency

Inability to digest lactose (temperate climates)

Variations in Population

Race Classificatory way to describe population variants.

Racism Belief that some races are inferior to others.

Misused and misunderstood (associated with racist thought)

Product of adaptive traits Traits that happen because of natural selection

tend to cluster in regions.

Race - Biological

Used to describe groups. Discriminate Make groups Superior/Inferior Developed Nations

White Underdeveloped Nations

Other

Race Social

European Advance Formed later civilizations Colonized much of the world Brought diseases (killed natives)

Racial Intelligence Whites are genetically smarter (belief)

Alpha Beta IQ test. IQ Tests

Not accurate IQ influenced by social environment

European Advance Racial Intelligence

http://www.youtube.com/watch?v=YyL5EcAwB9c

http://www.youtube.com/watch?v=gOS3BBmUxvs&feature=relmfu

Genetic Engineering to replace maladaptive traits.

SUPERHUMAN!!!!!!!!!!!!!!

Perfect Human