Name: ________________________________
Core: _____
Date: _________
PEDIGREE CHART STATIONS WORKSHEET
Station 1: Simple Pedigree
________ 1. A male
2. A female
________ 3. A marriage
4. A person who expresses the trait
5. A person who does not express the trait
6. A connection between parents and offspring
________ 7. How many generations are shown on this chart?
Station 2: Tracing the path of an autosomal recessive trait
10. What is Arlene's genotype?
11. What is George's genotype?
12. What are Ann & Michael's genotypes?
13. Most likely, Sandra's genotype is
.
14. List three people from the chart (other than George) who are most likely carriers of Falconi anemia.
Station 3: Tracing the path of an autosomal dominant trait
15. Draw the pedigree chart below. Is individual #1 most likely homozygous dominant or heterozygous? Explain how
you can tell.
16. What is the genotype of individual #3?
17. Can you be sure of the genotypes of the affected siblings of individual #3? Explain.
Station 4: Case Study #1 – Construct a Pedigree for Albinism
18. Draw the pedigree chart below. Use the following alleles: A = regular color
a = albinism.
Station 5: Case Study 2 – Construct a pedigree for Huntington’s Disease
19. Draw the pedigree chart below. Use the following alleles: H = Huntington’s Disease h = normal
Station 6: Case Study #3 – Construct a pedigree for blood type
20. Draw the pedigree chart below. Use the following genotypes:
AA or AO = A type blood
BB or BO = B type blood
AB = AB Type Blood
O = O type blood
Station 7: Construct a pedigree for Hemophilia
21. Draw the pedigree chart below. Use the following alleles: H = normal
h = hemophilia.
Station 8: What kind of trait is it?
22. Draw the pedigree chart below. Is the trait autosomal recessive, autosomal dominant, or X-linked recessive? Explain
why with specific examples from the chart.