WGU D115 Final Exam Study Guide 100Questions and Answers | Verified Latest Update.

WGU D115 Final Exam Study Guide 100Questions and Answers | Verified Latest Update. How is transcription best defined? - Correct Answer-RNA is synthesized from a DNA template. An amniocentesis indicates a neural tube defect when an increase in which protein is evident? - Correct Answer-Alpha fetoprotein Amniocentesis is recommended for pregnant with what history? - Correct Answer-Have a family history of genetic disorders 35 or older positive prenatal screening test chromosomal condition or neural tube defect in a previous pregnancy abnormal ultrasound results What is the technique for prenatal diagnosis of chromosomal abnormalities at 10 to 12 weeks' gestation? - Correct Answer-Chorionic villus sampling *Amniocentesis is usually performed during the 15th week of pregnancy or later. What is the term for an error in which homologous chromosomes fail to separate during meiosis or mitosis? - Correct Answer-Nondisjunction What is the most common cause of Down syndrome? - Correct Answer-Maternal nondisjunction What syndrome, characterized by an absent homologous X chromosome with only a single X chromosome, exhibits features that include a short stature, widely spaced nipples, and webbed neck? - Correct Answer-Turner Syndrome A person with 47, XXY karyotype has the genetic disorder resulting in which syndrome? - Correct Answer-Klinefelter Syndrome When a child inherits a disease that is autosomal recessive, it is inherited from whom? - Correct Answer-Both Parents Cystic fibrosis is caused by what type of gene? - Correct Answer-autosomal recessive The BRCA1 and BRCA2 mutations increase the risk of which cancer in women? - Correct Answer-ovarian.