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CHAPTER 11
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Section 1: Basic Patterns of Human
Quick Check Inheritance
After reading the section in your textbook, respond to each statement.
1. List three recessive genetic disorders.
2. Explain what a pedigree is.
3. Classify If the recessive allele for cystic fibrosis is represented as c, classify the
following genotypes as homozygous dominant, homozygous recessive, or carriers:
CC, Cc, and cc. Distinguish which genotype is of an individual who has cystic
fibrosis.
4. Predict One parent is heterozygous for a recessive genetic disorder, and the other
parent is homozygous for the dominant allele. Determine if their offspring are likely
to express the recessive trait. Explain.
5. Deduce how Huntington’s disease can be passed on to offspring even though it is a
dominant, lethal disorder.
Unit 3
CHAPTER 11 Complex Inheritance and Human Heredity 57