Now that individuals are becoming increasingly aware of the fact that many diseases are caused by...
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Now that individuals are becoming increasingly aware of the fact that many diseases are caused by defective or abnormal genes, and now that science is able to locate the genes that cause many diseases more and more people are choosing to have genetic counseling and genetic screening. The genetic counselor first studies the family backgrounds of an individual or couple and tries to determine if ble ti family members have genetic disorders. If genetic disorders are present in the families, it is possible that the individuals seeking genetic counseling may be carriers of these genetic disorders, and the individuals may then choose to be tested for specific genetic disorders. Tests are now available for a number of different genetic disorders, as we have already discussed. With genetic testing, individuals can find out if they have specific disease, are predisposed to developing a certain disease, or if they are carriers for specific genetic disorders. Such testing is often done before a couple decides to have children. Once conception has occurred, prenatal testing can let parents know if the unborn child has inherited any of several diseases. The following is a case study along with background information that allows you to determine if individuals in the family have a particular disease or are carriers of the disease: Activity 1: Genetic Counseling Case Study Angelina and Anthony Angelieri contacted a genetic counseling service when their son Paulie was 10 months old. Paulie had recently been diagnosed with cystic fibrosis, an inherited disorder in which excessively thick mucus is produced, blocking ducts in the body and accumulating in the lungs. Neither of them knew of anyone else in their families that have had cystic fibrosis, and they were concerned that their future children might also have the disease. Cystic fibrosis (CF) is inherited as an autosomal recessive disorder. Use "F" for normal (no cystic fibrosis) and "I" for cystic fibrosis. 1, What is the chance that Angelina and Anthony's next child will have cystic fibrosis? Please explain or show your Punnett square for credit. To do this, you must first determine the genotypes of each parent. Each parent is normal, but they have a child who has cystic fibrosis (ff). 5. 3. 4. 2 A few weeks later, Angelina calls the genetic counseling service again. She has just been informed that Al has a form of muscular dystrophy known as Duchenne's muscular dystrophy. This form of muscular dystrophy results in a slow, gradual, and progressive deterioration of muscles, and is due to an X-linked recessive gene. Neither Angelina nor Anthony know of anyone in either of their families who has ever had muscular dystrophy. Angelina is concerned that her younger son, Paulie, will also have muscular dystrophy. Angelina and Anthony also have a 2-year-old son, AJ. AJ does not have cystic fibrosis. Angelina and Anthony want AJ tested to see if he is a carrier of CF. What is the chance that AJ is a carrier of CF? Please explain or show your Punnett square. (In calculating the chance that Al is a carrier, keep in mind that he does NOT have cystic fibrosis, so the CF genotype will not apply to him) What are the genotypes of each of the following individuals with respect to muscular dystrophy? Use Xº to represent the normal gene, and X to represent the gene for muscular dystrophy. Anthony (father) Angelina AJ (son with muscular dystrophy) What is the chance that their other son, Paulie, will also have muscular dystrophy? Please explain or show your Punnett square for credit. Remember that AJ is a boy, so only look at boys (XY) when determining Paulie's chances of having muscular dystrophy. If Angelina and Anthony have a daughter, what is the chance the daughter will have muscular dystrophy? Please explain. Again, remember to only look at the possibility that a girl (XX) will have muscular dystrophy. Now that individuals are becoming increasingly aware of the fact that many diseases are caused by defective or abnormal genes, and now that science is able to locate the genes that cause many diseases more and more people are choosing to have genetic counseling and genetic screening. The genetic counselor first studies the family backgrounds of an individual or couple and tries to determine if ble ti family members have genetic disorders. If genetic disorders are present in the families, it is possible that the individuals seeking genetic counseling may be carriers of these genetic disorders, and the individuals may then choose to be tested for specific genetic disorders. Tests are now available for a number of different genetic disorders, as we have already discussed. With genetic testing, individuals can find out if they have specific disease, are predisposed to developing a certain disease, or if they are carriers for specific genetic disorders. Such testing is often done before a couple decides to have children. Once conception has occurred, prenatal testing can let parents know if the unborn child has inherited any of several diseases. The following is a case study along with background information that allows you to determine if individuals in the family have a particular disease or are carriers of the disease: Activity 1: Genetic Counseling Case Study Angelina and Anthony Angelieri contacted a genetic counseling service when their son Paulie was 10 months old. Paulie had recently been diagnosed with cystic fibrosis, an inherited disorder in which excessively thick mucus is produced, blocking ducts in the body and accumulating in the lungs. Neither of them knew of anyone else in their families that have had cystic fibrosis, and they were concerned that their future children might also have the disease. Cystic fibrosis (CF) is inherited as an autosomal recessive disorder. Use "F" for normal (no cystic fibrosis) and "I" for cystic fibrosis. 1, What is the chance that Angelina and Anthony's next child will have cystic fibrosis? Please explain or show your Punnett square for credit. To do this, you must first determine the genotypes of each parent. Each parent is normal, but they have a child who has cystic fibrosis (ff). 5. 3. 4. 2 A few weeks later, Angelina calls the genetic counseling service again. She has just been informed that Al has a form of muscular dystrophy known as Duchenne's muscular dystrophy. This form of muscular dystrophy results in a slow, gradual, and progressive deterioration of muscles, and is due to an X-linked recessive gene. Neither Angelina nor Anthony know of anyone in either of their families who has ever had muscular dystrophy. Angelina is concerned that her younger son, Paulie, will also have muscular dystrophy. Angelina and Anthony also have a 2-year-old son, AJ. AJ does not have cystic fibrosis. Angelina and Anthony want AJ tested to see if he is a carrier of CF. What is the chance that AJ is a carrier of CF? Please explain or show your Punnett square. (In calculating the chance that Al is a carrier, keep in mind that he does NOT have cystic fibrosis, so the CF genotype will not apply to him) What are the genotypes of each of the following individuals with respect to muscular dystrophy? Use Xº to represent the normal gene, and X to represent the gene for muscular dystrophy. Anthony (father) Angelina AJ (son with muscular dystrophy) What is the chance that their other son, Paulie, will also have muscular dystrophy? Please explain or show your Punnett square for credit. Remember that AJ is a boy, so only look at boys (XY) when determining Paulie's chances of having muscular dystrophy. If Angelina and Anthony have a daughter, what is the chance the daughter will have muscular dystrophy? Please explain. Again, remember to only look at the possibility that a girl (XX) will have muscular dystrophy.
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Smith and Roberson Business Law
ISBN: 978-0538473637
15th Edition
Authors: Richard A. Mann, Barry S. Roberts
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