Bio Bootcamp

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Bio Bootcamp

• Evolution Review

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Sample Question
Population A
Population B

• This graph illustrates changes in two different
  lizard populations over time. Which process MOST
  LIKELY led to the change in the allele frequency
  for population B?
• Natural selection acting on a harmful trait
• Natural selection acting on a beneficial trait
• Natural selection acting on a dominant trait
• Natural selection acting on a recessive trait

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Sample Question

• A mutation occurs in the genes that code for coat
  color in caribou. Which change will most likely
  result from this mutation?
• A. A change in the selection pressures acting on
  coat color.
• B. A change in the coat-color genes of deer
  predator species
• C. An increase in coat-color diversity in the
  population
• D. An increase in the number of genes for coat
  color in the population.

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Sample Question

• The skeletons of vertebrate forelimbs contain
  variations of structures that were present in
  their common ancestor. What has MOST LIKELY
  cause the variation in forelimbs?
• Changes in muscle structure
• Changes in genetic code
• Changes in vestigial structures
• Changes in artificial selection

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Misconception Evolution is just a theory.

• Response Scientific theories are explanations
  that are based on lines of evidence, enable valid
  predictions, and have been tested in many ways.
  In contrast, there is also a popular definition
  of theorya guess or hunch. These conflicting
  definitions often cause unnecessary confusion
  about evolution.

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Evolution by Natural Selection

• EVOLUTION is the THEORY of how organisms have
  changed over time.
• Charles Darwin did NOT make this up!

• NATURAL SELECTION is the MECHANISM by which
  Evolution takes place.
• It does not attempt to explain how life began.

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Natural Selection
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Kettlewell England Peppered Moths
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Allelic Frequency
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Speciation
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Founder Effect/Bottleneck
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Geographic Isolation
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Habitat Isolation - Lizards
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Mechanical Isolation
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Mechanical Isolation
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Behavioral Isolation
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Temporal Isolation
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Reproductive Isolation
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Types of Evolution
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Convergent Evolution
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Divergent Evolution
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Artificial Selection
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Coevolution
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Fossils
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Biogeography
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Hemoglobin Comparison
Section 2 Evidence of Evolution
Chapter 15
Biochemical
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Similarities in Amino Acid Sequences
Section 2 Systematics
Biochemical
Chapter 17
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Universal Genetic Code
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Homologous Structures

• Forelimbs of vertebrates

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Analogous Structures
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Vestigial Structures
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Evidence of Whale Evolution
Section 2 Evidence of Evolution
Chapter 15
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Embryology