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Lesson 56 Joes Dilemma. Play Video How do your Genes fit?

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Presentation on theme: "Lesson 56 Joes Dilemma. Play Video How do your Genes fit?"— Presentation transcript:

1 Lesson 56 Joes Dilemma

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6 Play Video How do your Genes fit?

7 1. What are the signs that suggest a person may have the Marfan syndrome? 2. What causes the Marfan syndrome? 3. Can you catch the Marfan syndrome from another person, the way you can catch the flu? Explain. The typical signs are a long, narrow face; tall, slender stature; long arms, legs, fingers, and toes relative to overall height; double-jointedness or loose joints; nearsightedness; and curvature of the spine. The Marfan syndrome is caused by one altered gene. No, you cannot catch the Marfan syndrome from another person. You can catch only infectious diseases, which are caused by microbes (viruses, bacteria, and small organisms). The Marfan syndrome is an inherited disease that is passed on in a gene from a parent to his or her child.

8 4. What effect can the Marfan syndrome have on a persons life? Having the Marfan syndrome usually means that a person must avoid certain kinds of physical activity, such as contact sports, and avoid overexertion. The person probably will have more doctors appointments than usual, especially to monitor the eyes and heart, and may be anxious about health issues.

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10 List 1: Hair dyed blonde, suntan, blue eyes due to contacts, and long hair are all traits that are environmental, while a PTC taster is genetically determined. List 2: A cold, mononucleosis, athletes foot, and chicken pox are all infectious diseases. List 3: A persons arm span, height, skin color, and susceptibility to disease are both environmentally and genetically determined.


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