Nondisjunc+pedigree+edit

Nondisjunc+pedigree+edit - Chapter 7 Lecture Outline...

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Chapter 7 Lecture Outline Patterns of Inheritance
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2 Nondisjunction Inheritance Patterns Nondisjunction: unequal meiotic division & distribution of chromosomes. Autosomal Chromosomes: 1 st to 22 nd pair of chromosomes. Down’s Syndrome Trisomy 21
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© 2006 W.W. Norton & Company, Inc. DISCOVER BIOLOGY 3/e 3
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© 2006 W.W. Norton & Company, Inc. DISCOVER BIOLOGY 3/e 4
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© 2006 W.W. Norton & Company, Inc. DISCOVER BIOLOGY 3/e 5
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1. Amniocentesis
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© 2006 W.W. Norton & Company, Inc. DISCOVER BIOLOGY 3/e 7 Nondisjunction : Sex Chromosomes
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© 2006 W.W. Norton & Company, Inc. DISCOVER BIOLOGY 3/e 8
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Turner Syndrome: X_
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Klinefelter Syndrome: XXY
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XYY Males – Jacobian Males
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XXX Females
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13 Nondisjunction: Sex Chromosomes XXY: Klinefelter’s Syndrome - feminization XYY: Jacobian Male - Extra Testosterone XXX: Meta female – Extra Estrogen XO: Turner’s Syndrome – Incomplete female YO: Deceased
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14 Inheritance Pattern Summary Genes are passed from parent to offspring
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Nondisjunc+pedigree+edit - Chapter 7 Lecture Outline...

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