chapter 6 modern genetics section 2: human genetic disorders what are two major causes of genetic...

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Chapter 6 Modern Genetics

Section 2: Human Genetic Disorders

What are two major causes of genetic disorders in humans?

How do geneticists trace the inheritance of traits?

How are genetic disorder diagnosed and treated?

Chapter 6 Modern Genetics

Genetic Disorders

• Abnormal conditions that people inherit through genes or chromosomes

• May be caused by changes in the DNA of genes

• May be caused changes in the overall structure or number of chromosomes

Chapter 6 Modern Genetics

A Pedigree

A pedigree is a chart or “family tree” that tracks which members of a family have a particular trait.

Chapter 6 Modern Genetics

Pedigree Activity

Click the Active Art button to open a browser window and access Active Art about pedigrees.

Chapter 6 Modern Genetics

A Hemophilia Pedigree

The pedigree shows the inheritance of hemophilia, a sex-linked disorder in a family.

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