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Published byEmery Hensley Modified over 9 years ago
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To discuss genetic disorders 14.1 and 14.2 notes
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Karyotype- picture of chromosomes arranged in pairs Autosomes- all chromosomes that are not sex chromosomes Sex chromosomes- the chromosome that determine sex, X and Y
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Pedigree- shows relationships within a family and how traits are passed often you can get the genotype of the individuals helpful in determining if a trait can be passed on in the future
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sex linked genes- genes located on the X and sometimes the Y (since it is smaller) colorblindness- males have just one X so if mom is a carrier for colorblindness there is a high chance her son will be colorblind
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baldness is another example hemophilia is another example (much more likely that a male will have hemophilia than a female)
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nondisjunction- when chromosomes don’t separate properly when forming gametes results in trisomy 21 down syndrome also, can cause sex disorders
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Turner’s syndrome A female with only one “X” Unable to reproduce or go through puberty Klinefelter’s – XXY or XXXY or XXXXY Usually unable to reproduce
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Can also have XXX--- tall and low IQ Can also have XYY---- tall and acne and maybe more aggressive Prison study No known case of human born without an X
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