Human Heredity

• Vocabulary

– Karyotype– Sex chromosome– Autosome– pedigree

What are the types of chromosomes in a karyotype

• 46 chromosomes = • 23 from dad• 23 from mom• Of the 46 two tow chromosomes are known as sex

chromosomes• The rest are called=• So female = 46,XX• Males =46,XY

How are pedigrees used to study Human Traits

• Shows the relationships within a family

Blood grouping genes

Human Chromosomes

• Sex-linked genes

• nondisjunction

Why are sex-linked disorderes more common in males than

females

Nondisjunction

What Is nondisjunction and what problems does it cause?

Human Molecular Genetics

• DNA Fingerprinting

What is the goal of the Human Genome Project?

• Is an effort to analyze the human DNA sequence

• Study pitcure 358

What is Gene Therapy?

• Extra credit lab on page 361