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Genetic Diseases A closer look at diseases..

Genetic Diseases A closer look at diseases. But first, Let’s Review! And more. Cystic Fibrosis. Heredity: recessive Most common in Caucasians, lifespan = ~30 yrs old Excessive mucous production, salty sweat, shortage of enzymes can cause. Cystic Fibrosis Video.

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Genetic Diseases A closer look at diseases..

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  1. Genetic DiseasesA closer look at diseases.. But first, Let’s Review! And more

  2. Cystic Fibrosis • Heredity: recessive • Most common in Caucasians, lifespan = ~30 yrs old • Excessive mucous production, salty sweat, shortage of enzymes can cause

  3. Cystic Fibrosis Video • http://www.youtube.com/watch?v=l0dDhKFk2HU • http://www.youtube.com/watch?v=EsCfijn-z1E&list=LPJGgAthKuLX8&index=4&feature=plcp

  4. Huntington’s Disease • Heredity: Dominant- children have 50% of getting disease. • Lifespan: 20 yrs after diagnosis • Neurodegenerative disease • Affects muscle coordination • Leads to psychiatric problems

  5. Sickle Cell Anemia • Red blood cell’s have abnormal shape • RBC’s carry oxygen – results in decreased Oxygen transport • Blood blockage throughout body

  6. Malaria • Transmitted by mosquitoes • Blood disease caused by parasites • Parasites ingest hemoglobin in blood (which transports oxygen)

  7. Connection between Malaria and Sickle Cell Anemia • Incomplete dominance • Carriers of sickle cell resistant to malaria

  8. Environmental Effects on Genetic Diseases

  9. Review: • Theory of identical twins separated at birth • Nature: Environmental factors VS • Nurture: Conditions raised in

  10. Tobacco Use • Smoking Cigarettes: Increased risk of lung cancer http://www.youtube.com/watch?v=qQo-W8bnEVo • Chewing Tobacco: Increased risk of mouth and throat cancer

  11. Skin Cancer • Caused by increased sun exposure • Taking Folic acid will reduce your risk of sunburns, sun sensitivity • Vitamin D- get from sun’s exposure. • Eat dairy and oily fish instead to get Vitamin D

  12. Diabetes- high levels of sugar in blood • Type 1 (juvenile): • body does not produce insulin • Only 10-15% of people with diabetes have this form • Type 2 (adults): • Insulin resistance • Diet, exercise, medications- treatments • Linked to heart disease

  13. PKU- “phenylketonuria” • Can’t process the amino acid • Defected enzyme • Leads to mental retardation in kids • Treatable with diet: low amounts of breads, pastas

  14. Heart Disease • Genetic interaction • History of heart disease in your family- higher risk • Diet/exercise

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