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.
