62 oooo TMobile WiFi 902 PM Discussions Favorite Discussion

62% .oooo T-Mobile Wi-Fi 9:02 PM Discussions Favorite Discussion Board Topic #4 Due by 10pm on Sunday, 1/29 As karyotyping, genetic testing, and reproductive technologies become more accurate and widespread in use, they are allowing individuals to make reproductive choices that can ultimately affect allele frequencies within the population. For example, we can now gain information about our own genomes and determine whether we want to have children, we can create and choose from a number of embryos based on genetic testing, and we can gain prenatal information about the genetics of our offspring and may decide whether to continue or terminate the pregnancy. Based on your understanding of the material in chapters 13-17, please answer the following discussion questions: 1. Is the decision to prevent or end a pregnancy that would otherwise lead to the birth of a child with a genetic defect a eugenic measure? (for

Solution

1. Neural tube defect are always fatal at or within a few hours of birth. The correctable to severely disable of children or handicapped children born with these disorder. Trisomy 21(down syndrome) is a common autosomal aneuploidy characterized by growth retardation, lack of muscle tone, and moderate to severe intellectual disability. Neural Tube Defect Screening is performed in between 16 and 18 weeks of gestation and Down Syndrome Screening can be performed in the first or second trimester or in both. Pregnancy should be prevented with these disorder, because they are fetal. But abortion is very harmful for mother\'s health in the second trimester, thus it should be done with the doctor\'s advice.

2. These diagnostic tests can used to detects chromosomal abnormalities of fetus; ranging from Trisomy 21 (Down syndrome), Trisomy 18 (Edwards syndrome) or Trisomy 13 (Patau syndrome), and many others. It helps in the prognosis and treatment for each of these diagnoses. It gives you valuable information during pregnancy. If you go for treatment, then it affects the allele frequency. It can prevent pregnancy and affect allele frequencies, because 50% of babies who are carried to term will be stillborn, because of abortion. So it has great impact on society.