APBio Lab 8 PreLab
Name
Section
Tasks:
1)
2)
3)
4)
5)
6)
Review Chapters on Evolution, Population Genetics, and Speciation on the AP Book
Read over Evolution, Population Genetics, and Speciation chapter on your review book
Read over Population Genetics and Evolution AP Lab on your review book
Read over Evolution & Population Genetics, Power Notes available on the website
Read over the Online Worksheet and the Lab Worksheet
Answer the questions below on a separate sheet of paper
Population Genetics and Evolution
Use your lab sheet to help you answer these questions. You may also need to use your text or notes.
1. What is this lab about?
2. Name the two men who came up with the mathematical representation for evolution.
3. What two mathematical formulas will be used in this lab to study genetics and evolution?
4. Explain what each of these represents:
p, q, p2, q2, 2pq
5. If you have a population in which the frequency of the dominant allele is 30%, what is the frequency of
the recessive allele, the pure dominant individuals, the pure recessive individuals, the hybrids? Please show
your work.
6. If you have a population in which 36% of your individuals are homozygous recessive, what is the
frequency of the recessive allele, dominant allele, homozygous dominant individuals, homozygous
recessive individuals and homozygous individuals. Please show your work.
7. A set of five conditions will prevent evolution. That is, when five conditions are met there will be no
change in gene frequency from generation to generation. List the five conditions.
8. Why is the Hardy-Weinberg formula useful?
9. What is PTC? Why are we using it in this lab?
10. What are the possible genotypes of someone who can taste PTC?
11. What is the genotype of someone who cannot taste PTC?
12. In Part B of this lab we will each assume a genotype and will “mate” and produce offspring randomly.
What is the genotype that each person first assumes?
13. What is the genotypic frequency of the “a” gene in the original population?
14. What is the genotypic frequency of the “A” gene in the original population?