This particular post taught me that autosomal recessive diseases skip generations, while autosomal dominant diseases don't skip generations. Autosomal recessive disease is when there is one mutated allele and one normal gene. It has a 50% chance of being transmitted. All children of the infected people will be carriers no matter what. The disease is either transmitted by either the father or the mother. Both sexes have an equal chance of getting the disease, unless it is a sex-linked disease. Recessive diseases are never inherited directly because recessive diseases are only inherited by the y. Women can't display sex-linked genes, but they can be carriers. Greg and Olga could be a carrier for this disease because people in their family have the disease. In this activity Greg has a high chance of being a carrier, he can pass it to his sons, and his daughters could become carriers. His daughters could also have children that could possibly get the disease. Consanguineous means relating to or denoting people descended from the same ancestor. The advancement of technology can really harm the future of the kids with these genetically inherited disease. If a parent finds out that their unborn child has a disease, they are less likely to carry through with the pregnancy in order to "try again." Also, insurance companies would have to be forced to accept all children, no matter of their health because every disease could be "pre-exsisting."Friday, March 11, 2011
Pedigree Analysis
A while ago, we became "genetic counselors" for Greg and Olga, a couple who wanted to have kids, but was terrified of the fact that they're children could be born with a genetic disease. They were concerned because they had the Factor VIII deficiency disease throughout both sides of their families.
This particular post taught me that autosomal recessive diseases skip generations, while autosomal dominant diseases don't skip generations. Autosomal recessive disease is when there is one mutated allele and one normal gene. It has a 50% chance of being transmitted. All children of the infected people will be carriers no matter what. The disease is either transmitted by either the father or the mother. Both sexes have an equal chance of getting the disease, unless it is a sex-linked disease. Recessive diseases are never inherited directly because recessive diseases are only inherited by the y. Women can't display sex-linked genes, but they can be carriers. Greg and Olga could be a carrier for this disease because people in their family have the disease. In this activity Greg has a high chance of being a carrier, he can pass it to his sons, and his daughters could become carriers. His daughters could also have children that could possibly get the disease. Consanguineous means relating to or denoting people descended from the same ancestor. The advancement of technology can really harm the future of the kids with these genetically inherited disease. If a parent finds out that their unborn child has a disease, they are less likely to carry through with the pregnancy in order to "try again." Also, insurance companies would have to be forced to accept all children, no matter of their health because every disease could be "pre-exsisting."
The world of genetics is definitely a complicated one, that could cause a lot of problems, or great advancements in the future.
This particular post taught me that autosomal recessive diseases skip generations, while autosomal dominant diseases don't skip generations. Autosomal recessive disease is when there is one mutated allele and one normal gene. It has a 50% chance of being transmitted. All children of the infected people will be carriers no matter what. The disease is either transmitted by either the father or the mother. Both sexes have an equal chance of getting the disease, unless it is a sex-linked disease. Recessive diseases are never inherited directly because recessive diseases are only inherited by the y. Women can't display sex-linked genes, but they can be carriers. Greg and Olga could be a carrier for this disease because people in their family have the disease. In this activity Greg has a high chance of being a carrier, he can pass it to his sons, and his daughters could become carriers. His daughters could also have children that could possibly get the disease. Consanguineous means relating to or denoting people descended from the same ancestor. The advancement of technology can really harm the future of the kids with these genetically inherited disease. If a parent finds out that their unborn child has a disease, they are less likely to carry through with the pregnancy in order to "try again." Also, insurance companies would have to be forced to accept all children, no matter of their health because every disease could be "pre-exsisting."
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