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Ap Biology

QuestionAnswer
Marfan syndrome Marfan syndrome is a heritable condition that affects the connective tissue.
Stats It is estimated that at least 1 in 5,000 people in the United States have the disorder.
What does it affect specifically Because connective tissue is found throughout the body, Marfan syndrome can affect many body systems, including the skeleton, eyes, heart and blood vessels, nervous system, skin, and lungs
Treatment Treatment depends on which system is affected
Lifespan About the mid 40s
Cause Nondisjnction fo dominant gene
Polydactyly Polydactyly is a condition in which a person has more than five fingers per hand or five toes per foot.
Lifespan Normal only extra finger or toe
Cause Nondisjnction fo dominant gene
Treatment Treatment surgery
Progeria Progeria is a disease that produces rapid aging, beginning in childhood
Stats Ninety percent of children with progeria have a mutation on the gene that encodes the protein lamin A. Progeria usually occurs without cause. It is only very rarely seen in more than one child in a family.
Lifespan 30 years high posibillity of heart attack or stroke
Treatment No treatment
Nuerofibromatosis A progressive disease with involvement of the skin and nervous system as well as other organs
Stats NF is a common disorder affecting about 1 in 4000 people. It may be inherited in an autosomal dominant manner, or occur sporadically
Treatment There is no specific treatment for NF, and management includes genetic counseling and early detection of treatable conditions or complications. The asymptomatic patient should be re-examined yearly. Symptomatic patients may benefit from surgery treatment
Cause Nondisjunction
Created by: Jesus Mares on 2010-02-19



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