Pedigree Activity - Biology Worksheet

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Names: _________________________
Class: __________
Date: __________
Biology
Mr. Croft
Pedigree Activity
30 Points
A pedigree chart is used to study the passing of a trait through a number of generations.
People who raise show animals, such as dogs and cats, often use these charts for their
animals so the inheritance of desired traits from generation to generation can be traced.
Pedigree charts also are used to study the inheritance of certain diseases or disorders in
humans, such as sickle-cell anemia.
Procedure:
A. Study the key shown for symbols used on a pedigree chart.
B. Use the pedigree chart shown for sickle-cell anemia (autosomal recessive disease) to
answer the following questions (3 Points Each).

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