Remember this information for the conclusion questions below
NATURAL SELECTION AND ALLELIC FREQUENCY
Evolution can best be described as a change in the number of genes for a trait over time. Natural selection can place pressure on specific phenotypes (brown rabbit or white rabbit). In this activity you will simulate the effects of the eagles preying on the rabbits. In this environment white rabbits (genotype bb) were easiest to spot.
The brown rabbits (BB or Bb) blend in better than the white rabbits, therefore only 25% of the brown rabbits die each generation, whereas 100% of the white rabbits die.
CONCLUSION QUESTIONS
(USE THESE TO WRITE 2 PARAGRAPHS ON PG 81)
Did either allele disappear? Why or why
not?
What does your graph show about allelic frequencies and natural selection?
What would happen to the allelic frequencies if the number of eagles declined?
What did you learn or find interesting in this lab?
What did you find difficult or hard to understand in this lab?
What does your graph show about allelic frequencies and natural selection?
What would happen to the allelic frequencies if the number of eagles declined?
What did you learn or find interesting in this lab?
What did you find difficult or hard to understand in this lab?
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