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Essentials Of Human Disease 2nd Edition by Leonard Crowley
Edition 2ISBN: 978-1449688431Essentials Of Human Disease 2nd Edition by Leonard Crowley
Edition 2ISBN: 978-1449688431 Exercise 2
The frequency of the sickle cell hemoglobin gene in the African American population is about 8 percent. Two African Americans plan to marry and raise a family. The woman suggests that they both have a screening test for the sickle-cell hemoglobin gene before they marry, and the man asks what you think about the idea. What would you tell him? Explain your reasons.
Explanation
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The idea to undergo screen test for sickle cell hemoglobin gene in the couple going to be married is appreciated because this will give an idea whether the couple is carrier for the gene or do not contain the gene. The child may acquire recessive allele for sickle cell trait when the male parent is a carrier for the gene. When both the male and female are carriers for the gene then the child may acquire defected gene from both the parents and it would be a serious problem.
The prenatal diagnosis is available to detect the defected gene in the fetus. Depending on the presence or absence of one or two gene copies of defected gene, it can be decided to continue or to abort the pregnancy. Therefore, it would be always a good idea to have screening test before marriage and prenatal screening during pregnancy.
The prenatal diagnosis is available to detect the defected gene in the fetus. Depending on the presence or absence of one or two gene copies of defected gene, it can be decided to continue or to abort the pregnancy. Therefore, it would be always a good idea to have screening test before marriage and prenatal screening during pregnancy.
Essentials Of Human Disease 2nd Edition by Leonard Crowley
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