EVOLUTIONARY ANALYSIS

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EVOLUTIONARY ANALYSIS

• 1. To show the kind of questions evolutionary
  biologist investigate.
• 2. Demonstrate how an evolutionary view can
  inform researchers.
• 3. Introduce new concepts.

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Evolution of HIV

• Human Immunodeficiency viruses
• HIV-1
• HIV-2
• These are the pathogens that cause the acquired
  immune deficiency syndrome (AIDS)

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HIV- HUMAN IMMUNODEFICIENCY VIRUS

• HIV is a compelling case study because it raises
  issues that influence the lives of everyone.
• HIV is a virus that rapidly evolves drug
  resistance.
• HIV exemplifies two of the most pressing public
  health issues of our time.the

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DEFINITIONS

• Evolution-
• 1. Descent of organisms from common ancestors
• 2. With the genetic and phenotypic changes over
  time
• 3. These changes make them more suited to the
  local environment.

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• Allele-
• 1. Alternative forms of a gene
• 2. Found at the same point on homologous
  chromosomes.

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Questions

• 1. Why have promising AIDS treatments, like AZT,
  proven ineffective in the long run?
• 2. How does HIV win its battle against the immune
  system?
• 3. Why does HIV kill people?
• 4. Where did HIV come from?