WGU D115 Exam Study Guide | Questions and Correct Solutions 2025/2026

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 -Family history of genetic disorders What is a technique for chromosomal Abnormalities at 10 to 12 weeks gestation - Answer -Chronic villus sampling What is the For an error in which homologous Fail to separate during mitosis or meiosis - Answer - Nondisjunction What is the most common cause of down syndrome - Answer -Maternal nondisjunction What syndrome characterized by absent homologous X chromosome With only a single X-chromosome Exhibit features include 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 When a child inherits a disease that is autosomal recessive, it is inherited from: - Answer -both parents Cystic fibrosis is caused by what type of gene - Answer -autosomal recessive The BRCA1 and BRCA2 Mutations increase the risk of what type of cancer in women - Answer -Uterine Prater Willi syndrome Causes a chromosomal defect that is what - Answer -Inherited from the father What type of immunity is produced by an individual After either natural exposure To the antigen Or after immunization against the antigen - Answer -Acquired-active immunity What type of immunity is produced when an immuno globulin crosses the placenta - Answer -Passive acquired immunity Where are antibodies produced? - Answer -plasma cells What antibodies initiates A typical primary immune response - Answer -IgM