1. Heredity Disease Lesson 2 Ch 18

2. What are genes? Genes control the activities of cells and determine a person’s physical characteristics. Genes are passed from parents to offspring. Color of eyes, hair, height, build…

3. What is a heredity disease? Any gene, given by one or both parents, to the child that is defective. For instance, sickle cell disease are caused by changes to one gene. Breast and Colon cancer may involve more than one gene. Down syndrome is the result of a person being born with par or all of an extra chromosome “21”

4. How many chromosomes do humans have? Humans have 23 pairs of chromosomes… half from father and mother.

5. Living with hereditary Diseases Doctors can test for many diseases. Many times problems can be reduced if caught early enough or given help, proper diet, or medication. These diseases can not be cured.

6. Metabolic and Nutritional Diseases What is matabolism? It’s the process by which the body converts the energy in food into energy the body can use. This process happens after digestion.

7. Metabolic Disease If a body can’t metabolize something it needs to survive, then you have a metabolic disease. Some problems begin before birth and sometimes after. Heredity, Drugs, Medication, and Diet are the main risk factors.

8. Common Metabolic Diseases PKU: Heriditary and person needs to follow a low protein diet Diabetes: Can be caused for a number of reasons. Your body’s pancrease doesn’t work properly to metabolize glucose. Rickets: Too little Vitamin D and too little Vitamin A causes blindness, but too much V-A causes liver disease and hair loss.

9. Nutrition and Health The more balanced you diet the less of a chance you will get a metabolic disease Eating the right amount of food is also important because eating too much can lead to disease Choosing foods low in fat, sugar and salt helps. Exercise is also part of the equation;-)