WGU D115 EXAM STUDY GUIDE,100, QUESTIONS WITH
100% VERIFIED CORRECT ANSWERS BY EXPERT
UPDATED 2026/2027.ASSURED A+
How is transcription best defined? - RNA is synthesized from a DNA template.
An amniocentesis indicates a neural tube defect when an increase in which protein
is evident? - Alpha fetoprotein
Amniocentesis is recommended for pregnant with what history? - 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? - 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? - Nondisjunction
,100% VERIFIED CORRECT ANSWERS BY EXPERT
UPDATED 2026/2027.ASSURED A+…….
What is the most common cause of Down syndrome? - 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? - Turner Syndrome
A person with 47, XXY karyotype has the genetic disorder resulting in which
syndrome? - Klinefelter Syndrome
When a child inherits a disease that is autosomal recessive, it is inherited from
whom? - Both Parents
Cystic fibrosis is caused by what type of gene? - autosomal recessive
The BRCA1 and BRCA2 mutations increase the risk of which cancer in women? -
ovarian
Prader-Willi syndrome causes a chromosomal defect that is what? - inherited
from the father
, 100% VERIFIED CORRECT ANSWERS BY EXPERT
UPDATED 2026/2027.ASSURED A+…….
Which type of immunity is produced by an individual after either natural exposure to
the antigen or after immunization against the antigen? - Active-Acquired
What type of immunity is produced when an immunoglobulin crosses the placenta? -
passive-acquired
Where are antibodies produced? - plasma cells
Which antibody initially indicates a typical primary immune response? - IgM
The common hay fever allergy is expressed through a reaction that is mediated by
which class of immunoglobulins? - IgE
What are blood transfusion reactions an example of? - Alloimmunity
Which statement is true regarding immunodeficiency? - Immunodeficiency is generally
not present in other family members.
A healthcare professional advises patients to exercise because it has a probable
impact on reducing which cancer? - Colon
100% VERIFIED CORRECT ANSWERS BY EXPERT
UPDATED 2026/2027.ASSURED A+
How is transcription best defined? - RNA is synthesized from a DNA template.
An amniocentesis indicates a neural tube defect when an increase in which protein
is evident? - Alpha fetoprotein
Amniocentesis is recommended for pregnant with what history? - 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? - 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? - Nondisjunction
,100% VERIFIED CORRECT ANSWERS BY EXPERT
UPDATED 2026/2027.ASSURED A+…….
What is the most common cause of Down syndrome? - 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? - Turner Syndrome
A person with 47, XXY karyotype has the genetic disorder resulting in which
syndrome? - Klinefelter Syndrome
When a child inherits a disease that is autosomal recessive, it is inherited from
whom? - Both Parents
Cystic fibrosis is caused by what type of gene? - autosomal recessive
The BRCA1 and BRCA2 mutations increase the risk of which cancer in women? -
ovarian
Prader-Willi syndrome causes a chromosomal defect that is what? - inherited
from the father
, 100% VERIFIED CORRECT ANSWERS BY EXPERT
UPDATED 2026/2027.ASSURED A+…….
Which type of immunity is produced by an individual after either natural exposure to
the antigen or after immunization against the antigen? - Active-Acquired
What type of immunity is produced when an immunoglobulin crosses the placenta? -
passive-acquired
Where are antibodies produced? - plasma cells
Which antibody initially indicates a typical primary immune response? - IgM
The common hay fever allergy is expressed through a reaction that is mediated by
which class of immunoglobulins? - IgE
What are blood transfusion reactions an example of? - Alloimmunity
Which statement is true regarding immunodeficiency? - Immunodeficiency is generally
not present in other family members.
A healthcare professional advises patients to exercise because it has a probable
impact on reducing which cancer? - Colon
