Hemochromatosis - pass on the disease to their offspring Heterozygotes(Aa have the trait Children with the trait have at least one parent that has

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Hemochromatosis Hemochromatosis is a disease that causes the body to absorb more iron from food than normal. High iron levels can lead to organ damage if it is left untreated for many years. Symptoms include joint pain, fatigue, and abdominal pain. There are two different mutations of the gene that causes hemochromatosis (the HFE gene) and the severity of symptoms depends on the mutations that are inherited. One in 200 people in the United States carry the gene and it is the most common genetic disease in people of northern European descent. There is also a form of this disease that is not due to genetic factors, it is acquired. Autosomal Dominant Severe dominant diseases are rare because carriers die before they get a chance to reproduce and
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Unformatted text preview: pass on the disease to their offspring. Heterozygotes (Aa) have the trait. Children with the trait have at least one parent that has the trait. Two parents with the trait can produce a child that does not have the trait. Both males and females are affected equally. Neurofibromatosis (NF) Neurofibramatosis is actually three separate genetic diseases that cause benign tumors to grow on nerves. People with this gene typically have 6 or more large tan spots on the skin which may increase in size, number and darkness. There may be learning disabilities and hyperactivity. The disease is usually mild but may be severe causing deformities and even death. The incidence is 1 in 3000 newborns. The gene is on chromosome 17....
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.

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