Cause of changing Allele Frequencies

• Allele Frequencies

  • Proportion of particular allele appearing at certain gene locus for gene the gene pool
• Environmental Selection Pressures 

  • Factor in environment that impacts ability of organism surviving and reproducing 
  • Predation 
  • Disease 
  • Competition
• Natural selection

  • Selection of phenotypes more suited to overcome an environmental selection pressure. This increases the surcvivability and reproducablity of an organism
• Fitness 

  • Measure of how well an organism survives and reproduces in environment, based on advantages phenotypes that have selective advantage and increases allele frequencies