Name __________________________________________ Date _______________ Period _________
Chapter 11 Study Guide
For Questions 1-9, use the pedigree chart shown below. Some of the labels may be used more than once.
________ 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?
8- 11. Identify the following pedigrees as autosomal or sex linked AND as dominant or recessive.
12. Differentiate between incomplete dominance and co-dominance, give examples of each.
13. Explain how multiple alleles affect the coat color of rabbits.
14. Explain epistasis. How does it affect ponies coat color?
15. Why do males have a greater chance of inheriting sex-linked disorders?
16. What is a polygenic trait?
17. What is a karyotype?
18. How does non-disjunction occur?
19. Draw a picture that shows how a child might end up with trisomy X (47, XXX) syndrome due to a nondisjunction
event. Where could non-disjunction occur?
20. Complete the chart.
Genotype
Phenotype
X
XX
XXX
XY
XXY
XYY
Y