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Runs Family
It Runs in the Family Of the twenty potential offspring in the five pairings that could represent Melissa's parents, only three do not carry the Huntington's mutation, giving Melissa a 17/20 or 85% chance of developing Huntington's. If she does have Huntington's, there is a 50% chance that she is homozygous dominant (will definitely pass on the trait to her offspring) and 50% heterozygous (50% chance of passing it on), for…
What is the chance that Melissa will develop HD and what could she expect if she did develop the disease?
Huntington's Disease is caused by a dominant mutation in a gene, meaning that if one or both of the gene that carries this mutation has the Huntington's mutation, the disease will manifest physically (NIH 2011). In other words, if one of a person's two biological parents had or has Huntington's Disease, there is at minimum a fifty percent chance of an offspring inheriting the disease, and inheritance will lead to expression if given enough time (May Clinic 2011). Because Melissa does not have access to any pertinent information other than that her mother had the disease, calculating her potential for developing the disease becomes much more complex, as all alternatives must be considered. The Punnet squares below help to illustrate this:
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References
Mayo Clinic. (2011). Huntington's Disease. Accessed 23 July 2011. http://www.mayoclinic.com/health/huntingtons-disease/DS00401/DSECTION=risk%2Dfactors
NIH. (20110. NINDS Huntington's Disease Information Page. Accessed 23 July 2011. http://www.ninds.nih.gov/disorders/huntington/huntington.htm
Torrey, T. (2010). The Pros and Cons of Genetic Testing. Accessed 23 July 2011. http://patients.about.com/od/yourdiagnosis/ss/genetictestingproscons.htm
Tree.com. (2011). The Pros And Cons Of DNA Genetic Testing. Accessed 23 July 2011. http://www.tree.com/health/genetic-health-pros-cons.aspx
Family Systems and Marriage Preparation Programs It has been a recent development within the United States when the government has started making an effort to establish marriage programs that can help strengthen the foundation of marriages. They have done so by recently joining hands with the church and other faith-based organizations that run marriage preparation programs. One such organization is the Association of Couples for Marriage Enrichment (ACME) that primarily focuses
Those who happen to be disproportionately affected by hypertension according to Elliot (2007) are African-Americans. Family history of BP also plays a prominent role in the prevalence of hypertension. In the words of Elliot (2007), "data consistently indicate that BP levels are hereditable." What this means is that studies have clearly demonstrated that an individual's risk of high blood pressure is largely dependent on whether or not there is
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Family Law and Gay and Lesbian Marriage What makes a marriage, in the eyes of society and the eyes of the law? As this paper is being written, President George W. Bush has called for a constitutional amendment upholding the idea that marriage is an institutional bond that can exist only between a man and a woman. Somewhat belying his claim that this idea is purely legal in its nature, however,
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Family Business and Steinberg Case Steinberg's Success -- Sam Steinberg (1905-1978), was a Canadian of Hungarian descent who transformed the grocery story founded by his mother Ida, into one of the largest chains in the Quebec, Steinberg's Supermarket. One of his key successes was helping to transform food retailing in the post-World War II era into mass merchandising, mechanization, and personnel management that fed into and exploited the bilingual nature of