BIOL 2020 Chapter Notes - Chapter 2.3: Sickle-Cell Disease, Down Syndrome, Hemoglobin
7 May 2020
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Who has kids with down syndrome: 1 in 800 or 1000 births, the longer you wait to have kids, the higher chance you have kids with. People have fewer kids and wait longer to have them. If you"re older mother, it would be really nice to find out if there"s a risk of down. Detection rate is not good (80%) and false-positive is 5%. You can also try imaging and ultrasound or combination but false-positive rate is still 5%. Descent (may confer protection from dying from malaria) Sickle cell disease: sickle cell disease results from two copies of sickle cell hemoglobin gene are present. Sickle cell disease: hetrozygote less likely to die from. Sickle cell anemia: up to 1/3 of population of sub- Pku (phenylketunuria: enzyme absence, phenylalanin hydroxylase (pah) absent, pheylalanine leads to abnormal brain development, seizures, brain damage, and mental retardation, frequency of pku higher in irish, west scotland, slavs, and.
