WGU D115 Final Study Guide Exam Questions and Answers (Download To Score A

WGU D115 Final Study Guide Exam Questions and Answers (Download To Score A) How is transcription best defined? - Answer /-RNA is synthesized from a DNA template. An amniocentesis indicates a neural tube defect when an increase in which protein is evident? - Answer /-Alpha fetoprotein Amniocentesis is recommended for pregnant with what history? - 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? - 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? - Answer /-Nondisjunction What is the most common cause of Down syndrome? - 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? - Answer /-Turner Syndrome A person with 47, XXY karyotype has the genetic disorder resulting in which syndrome? - Answer /-Klinefelter Syndrome When a child inherits a disease that is autosomal recessive, it is inherited from whom? - Answer /-Both Parents Cystic fibrosis is caused by what type of gene? - Answer /-autosomal recessive The BRCA1 and BRCA2 mutations increase the risk of which cancer in women? - Answer /-ovarian Prader-Willi syndrome causes a chromosomal defect that is what? - Answer /-inherited from the father