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11 Cards in this Set
- Front
- Back
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Turner syndrome
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X only
missing second sex chrsomsome total of 45 |
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Triplody
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3X of a chromosome
instead of normal 2X |
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Trisomy 16
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okay, think you can handle that!
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nondisjuction producing monosomy/trisomy are related
Where would this originate? |
meiosis I & II both
think about it, draw it out (Pg 15) |
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mitotic disjunction - condition produced has a term
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mosaicism - happens early in mitosis of embryonic cells.
creates a portion of normal/abnormal cells effects depend on number of abnormal effects resemble meoitic disjunction individuals |
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translocation
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innappropriate joining of chromosomes due to breakage and joining
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Trisomy 21
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Down Syndrome
growth retardation varying mental retardation craniofacial abnormalities |
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Trisomy 18
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mental retardation
flexion of hands and fingers death within 2 months |
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Trisomy 13
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mental retardation
eye defects 90% die within 1st yr |
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Klinefelter Syndrome
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males only
testicular atrophy at puberty XXY sex chromosomes - barr body of inactivated sex chromosome |
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Triple X
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infantile
two sex chromatin bodies in cell |
