Genetics Problem Sets Worksheet With Answer Key Page 13
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14Genetics Problems Set #5
PEDIGREE CHARTS
1. Use the pedigree below to answer the following questions. Remember squares are males and
circles are females, and shaded individuals have whatever trait is being considered.
Pedigree #1: Albinism (an autosomal recessive)
a. What is the most likely genotype of individual #1? What other genotypes might this
person have?
b. What is the most likely genotype of individual #2? What other genotypes might this
person have?
c. What is the most likely genotype of individual #3? What other genotypes might this
person have?
d. If individual #5 and individual #6 have children, what percent of their children would you
expect to be albino?
e. How could you tell just by looking at this pedigree whether albinism is dominant or
recessive?
Genetics Problems
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