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Essay / Research Paper Abstract
This 4 page paper considers how common it is to have cystic fibrosis (CF) in light of the fact that both parents have to have a point mutation in their CF gene. This paper relates the fact that this is a relatively uncommon condition, but also assesses the use of genetic testing for the disease and other similar diseases. Bibliography lists 5 sources.
Page Count:
4 pages (~225 words per page)
File: MH11_MHcfmutagen.doc
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Unformatted sample text from the term paper:
directly to genetic mutations and the presence of recessive factors from both parents. Understanding the connection between point mutations and the development of disease can define views on whether
mutagens should be avoided during pregnancy and how specific recessive traits become prominent. In order for a child to develop CF, both parents must carry a point mutation in
the CF gene. When both parents carry the recessive gene mutation for cystic fibrosis, these children have a 25 percent chance of being born with the disease (Trefil &
Hazen, 2010). While this may seem like a large risk for CF among couples who both have the point mutation, this is a relatively small percentage of the total
population. Trefil & Hazen (2010) maintained that this accounts for approximately 2000 cases in North America, concentrated in Caucasian populations, Bergeron cited the worldwide figures as approximately 1 in
3300 live births. Bergeron maintained that about 1 in 29 Caucasians of northern European heritage are carriers for the disease. These figures underscore the fact that while a
distinct and measurable problem, CF impacts a relatively small percentage of the overall population. While researchers have recognized that the most common form of CF is the result of
a genetic mutation on chromosome 7 that appears in both parents, there may be many cases when one parent may have the mutation on chromosome 7 and the other does
not, and so CF is not present in the infant. The fact that a mutation occurred in the specific area of chromosome 7 that can result in the development
of CF is a part of the hereditary conveyance of that mutation. If a mutation were to occur to correct that abnormality, it would have to occur randomly and
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