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| Teaching Since: | May 2017 |
| Last Sign in: | 399 Weeks Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
DMD is a serious form of Muscular Dystrophy, a sex-linked recessive disease.
• If a woman is a carrier, her sons have a 50% chance of being affected; daughters have a 50% chance of being carriers.
• 2/3 of DMD cases are inherited (from Mom); 1/3 of DMD cases are due to spontaneous mutations. Now suppose there is a screening test to check whether a woman is a carrier such that 
where T+ and T− are the events that the test is positive and negative, respectively, and C+ and C− are the events that a woman is and is not a carrier, respectively. A woman has a child with DMD and then has a screening test done to see if she is a carrier. If the test comes back positive, what is the probability that she is a carrier? What if the screening test is negative?
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