Which of the following genetic diseases would not be revealed with a parental blood test before pregnancy?

Question

Quizplus · Accepted Answer

Huntington's disease is a late-onset genetic disorder, meaning symptoms typically do not appear until adulthood, often after individuals have had children. While a parental blood test can identify the gene responsible for Huntington's disease, the question specifies diseases "not revealed with a parental blood test before pregnancy." This is misleading because Huntington's disease can indeed be identified through genetic testing at any stage of life, including before pregnancy. However, in the context of diseases typically screened for in parental genetic testing before pregnancy, Huntington's might be less commonly included due to its late onset and complex ethical considerations surrounding predictive testing for adult-onset conditions. Therefore, the correct interpretation here is that all listed diseases can be revealed through genetic testing, but the question's phrasing may suggest looking for a condition that is distinct in its presentation or screening practices, which does not apply as Huntington's disease can be detected through such tests if chosen to be screened for.

Which of the Following Genetic Diseases Would Not Be Revealed