brest cancer Essay

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“One in every ten women in the United States will develop breast cancer sometime during her life”. (Breast Care). More than six percent of these cases are linked to hereditary. There are many measures that can be taken to detect breast cancer early in its stages. Women who believe they have a higher risk should have the breast cancer gene testing.
In order for a woman to consider her case of breast cancer to be hereditary, she must contain either the BRCA1 or BRCA2 gene mutation in her genetic make up. Hundreds of mutations have been found in both genes and almost all of the mutations identified are primitive mutations found in only a single family. Most of the mutations result
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Thus every child that is conceived thereafter has a possibility of passing it on to his or her child. (Transmed Network-Breast Cancer-Characteristics of Hereditary Breast Cancer, 1997). The off spring of an individual identified as having either the BRCA1 or BRCA2 mutations have a fifty percent chance of inheriting the mutation themselves. (Gene Clinics, 2000). If the mutation exists in someone’s genetic makeup it is considered a dominant trait and can be passed down generation to generation as long as it remains dominant. The mutation may also be passed down as a recessive gene in the genetic makeup.
The risk that a sibling will inherit the cancer predisposing BRCA1 and BRCA2 mutation is fifty percent if at least one parent had the BRCA1 or BRCA2 cancer predisposing mutation as well. If one sibling inherited the mutation it does not mean that the other siblings will also inherit the mutation. However, the risk of developing the cancer depends upon the kind of mutation, the gender of the individual, and the person’s age. (Gene Clinics, 2000) Studies showed that the BRCA1 cancer predisposing gene is linked to forty five percent of site specific related breast cancer and thirty five percent of site specific cases were related to the BRCA2 gene. (Transmed Network-Breast Cancer, 1997). A person who has the
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