FINAL STUDY GUIDE D115 QUESTIONS
AND CORRECT ANSWERS
A person with 47, XXY karyotype has the genetic disorder resulting in which syndrome?
✅✅ANSW-Klinefelter Syndrome
When a child inherits a disease that is autosomal recessive, it is inherited from whom?
✅✅ANSW-Both Parents
Cystic fibrosis is caused by what type of gene? ✅✅ANSW-autosomal recessive
The BRCA1 and BRCA2 mutations increase the risk of which cancer in women? ✅✅ANSW-ovarian
Prader-Willi syndrome causes a chromosomal defect that is what? ✅✅ANSW-inherited from the
father
Which type of immunity is produced by an individual after either natural exposure to the antigen or
after immunization against the antigen? ✅✅ANSW-Active-Acquired
What type of immunity is produced when an immunoglobulin crosses the placenta? ✅✅ANSW-
passive-acquired
Where are antibodies produced? ✅✅ANSW-plasma cells
Which antibody initially indicates a typical primary immune response? ✅✅ANSW-IgM
The common hay fever allergy is expressed through a reaction that is mediated by which class of
immunoglobulins? ✅✅ANSW-IgE
How is transcription best defined? ✅✅ANSW-RNA is synthesized from a DNA template.
An amniocentesis indicates a neural tube defect when an increase in which protein is evident?
✅✅ANSW-Alpha fetoprotein
, Amniocentesis is recommended for pregnant with what history? ✅✅ANSW-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? ✅✅ANSW-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? ✅✅ANSW-Nondisjunction
What is the most common cause of Down syndrome? ✅✅ANSW-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? ✅✅ANSW-Turner Syndrome
What are blood transfusion reactions an example of? ✅✅ANSW-Alloimmunity
Which statement is true regarding immunodeficiency? ✅✅ANSW-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? ✅✅ANSW-Colon
Inflammation and swelling of the 7th cranial nerve with resultant unilateral facial muscle paralysis is
called ✅✅ANSW-Bells' Palsy
AND CORRECT ANSWERS
A person with 47, XXY karyotype has the genetic disorder resulting in which syndrome?
✅✅ANSW-Klinefelter Syndrome
When a child inherits a disease that is autosomal recessive, it is inherited from whom?
✅✅ANSW-Both Parents
Cystic fibrosis is caused by what type of gene? ✅✅ANSW-autosomal recessive
The BRCA1 and BRCA2 mutations increase the risk of which cancer in women? ✅✅ANSW-ovarian
Prader-Willi syndrome causes a chromosomal defect that is what? ✅✅ANSW-inherited from the
father
Which type of immunity is produced by an individual after either natural exposure to the antigen or
after immunization against the antigen? ✅✅ANSW-Active-Acquired
What type of immunity is produced when an immunoglobulin crosses the placenta? ✅✅ANSW-
passive-acquired
Where are antibodies produced? ✅✅ANSW-plasma cells
Which antibody initially indicates a typical primary immune response? ✅✅ANSW-IgM
The common hay fever allergy is expressed through a reaction that is mediated by which class of
immunoglobulins? ✅✅ANSW-IgE
How is transcription best defined? ✅✅ANSW-RNA is synthesized from a DNA template.
An amniocentesis indicates a neural tube defect when an increase in which protein is evident?
✅✅ANSW-Alpha fetoprotein
, Amniocentesis is recommended for pregnant with what history? ✅✅ANSW-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? ✅✅ANSW-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? ✅✅ANSW-Nondisjunction
What is the most common cause of Down syndrome? ✅✅ANSW-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? ✅✅ANSW-Turner Syndrome
What are blood transfusion reactions an example of? ✅✅ANSW-Alloimmunity
Which statement is true regarding immunodeficiency? ✅✅ANSW-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? ✅✅ANSW-Colon
Inflammation and swelling of the 7th cranial nerve with resultant unilateral facial muscle paralysis is
called ✅✅ANSW-Bells' Palsy
