Genetic Disorders PPT

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New problem created • When females who are homozygous recessive for PKU become pregnant • High levels of phenylalanine in blood can damage fetus • Must avoid diet foods sweetened with artificial sweetener containing phenylalanine (diet pop, etc.) 2/11/2011 10
Cystic fibrosis (CF) • Autosomal Recessive • Most common genetic disorder among white Americans • (1 in 20 w. Amer. Carries recessive allele on chromo. #7) • (1 in 2500 children born to w. Amer. Inherit disorder) 2/11/2011 11
Page 1 and 2: Genetic Disorders 2/11/2011 1 http:
Page 3 and 4: What alleles are most often affecte
Page 5 and 6: Genetic disorders caused by dominan
Page 7 and 8: PKU cause • Recessive disorder
Page 9: Treatment • PKU test performed on
Page 13 and 14: CF result • Accumulation of mucus
Page 15 and 16: Tay-Sachs Disease • Autosomal Rec
Page 17 and 18: Tay-Sachs Disease Cont’d • Slow
Page 19 and 20: Huntington’s Disease • Neurolog
Page 21 and 22: Genetic disorders caused by sex-lin
Page 23 and 24: Causes • 1) Error in cell divisio
Page 25: How are unusual #’s of chromosome
Page 28 and 29: Results of abnormal # of chromosome
Page 30 and 31: Characteristics • Mental retardat
Page 32 and 33: Turner syndrome XO • Females •
Page 34 and 35: Klinefelter’s syndrome XXY 2/11/2
Page 36 and 37: Diabetes (con’d) • Genetic pred
Page 38 and 39: Galactosemia • Rare genetic disor
Page 40 and 41: Genetic Counseling • 1) Determine
Page 42: Amniocentesis needle inserted into

Genetic Disorders PPT

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