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8 Cards in this Set
- Front
- Back
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Sickle Cell Disease |
-Recessive -Not sex linked -African American descent -Blood clumps, hard to breathe, coldness in hands/feet -Genetic Advantage- if you have one copy if sickle cell allele you are usually healthy and resistant to malarist |
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Cystic Fibrosis |
-Recessive -Not sex linked -European descent -Symptoms : airways become clogged with thick mucus, hard to breathe -Advantage- if heterozygous for CF you have advantage when living in cities with poor sanitation |
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Huntington Disease |
-Dominant -No -No but starts taking place during middle age -Mental deterioration -No advantage |
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Colorbilindness |
-Recessive -Sex linked -Males -Can't see color -No |
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Down Syndrome |
-has 3 chromosome 21 -mild to severe retardation and high frequency of certain birth defects -if 2 copies of an autosomal chromosome fail to separate during meiosis, individual may be born with 3 copies of that chromosome |
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Turners Syndrome |
-inherits only one X chromosome -sterile -nondisjunction of X chromosome |
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Klinefleters Syndrome |
-extra X in males -- XXY -sterile -nondisjunction gives extra X chromosome |
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Nondisjunction |
When homologous chromosomes fail to separate |
