Human Heredity

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Human Heredity
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• Vocabulary
• Karyotype
• Sex chromosome
• Autosome
• pedigree

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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

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How are pedigrees used to study Human Traits

• Shows the relationships within a family

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Blood grouping genes
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Human Chromosomes

• Sex-linked genes
• nondisjunction

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Why are sex-linked disorderes more common in
males than females
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Nondisjunction
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What Is nondisjunction and what problems does it
cause?
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Human Molecular Genetics

• DNA Fingerprinting

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What is the goal of the Human Genome Project?

• Is an effort to analyze the human DNA sequence
• Study pitcure 358

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What is Gene Therapy?
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• Extra credit lab on page 361