WGU D115 OA AND PRE-OA EXAM
Complete Accurate Currently Testing Actual Exam Questions With Detailed
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,1. In the most commonly seen form of Turner Syndrome, how is the X chromosome affected?
A) Both cells have two X chromosomes.
B) Each cell has only one X chromosome; either the cell lacks one entirely or only one X is present.
C) Each cell has an extra X chromosome, for a total of three.
D) Each cell has an extra autosome, not a sex chromosome.
Correct answer: B) Each cell has only one X chromosome; either the cell lacks one entirely or only one X
is present.
2. What is the first step during the first time genetic counseling?
A) Diagnosis of the genetic disorder
B) Pedigree analysis
C) Obtaining informed consent
D) Discussing recurrence risk
Correct answer: A) Diagnosis of the genetic disorder
3. The FNP schedules a 35yearold primigravida (firsttime pregnancy) for an initial prenatal visit at 10
weeks gestation. The FNP would explain that the purpose of prenatal genetic screening is to:
A) Diagnose the presence of a genetic disorder
B) Determine the likelihood of certain conditions
C) Provide definitive results
D) Replace the need for ultrasound
,Correct answer: B) Determine the likelihood of certain conditions
4. A 7yearold child is evaluated for short stature. Chromosomal analysis reveals a 45,X karyotype.
Which of the following is the most likely diagnosis?
A) Klinefelter syndrome
B) Turner syndrome
C) Down syndrome
D) Edwards syndrome
Correct answer: B) Turner syndrome
5. The FNP is counseling a couple with a family history of cystic fibrosis. What is the inheritance pattern
of cystic fibrosis?
A) Autosomal dominant
B) Autosomal recessive
C) Xlinked dominant
D) Xlinked recessive
Correct answer: B) Autosomal recessive
6. Which of the following is a common clinical feature of Down syndrome?
A) Tall stature
B) Single palmar crease
, C) Macrocephaly
D) Hypertonia
Correct answer: B) Single palmar crease
7. A newborn is noted to have ambiguous genitalia. Which of the following is the most appropriate initial
step?
A) Immediate surgical correction
B) Karyotype analysis
C) Referral to endocrinology only
D) Genetic counseling after age 2
Correct answer: B) Karyotype analysis
8. Which prenatal screening test is most sensitive for detecting neural tube defects?
A) Amniocentesis for karyotype
B) Maternal serum alphafetoprotein (AFP)
C) Chorionic villus sampling
D) Maternal serum estriol
Correct answer: B) Maternal serum alphafetoprotein (AFP)
9. A 21yearold woman is a carrier for an Xlinked recessive disorder. What is the risk that her son will be
affected?
Complete Accurate Currently Testing Actual Exam Questions With Detailed
Answers | Already Graded | Guaranteed Pass
,1. In the most commonly seen form of Turner Syndrome, how is the X chromosome affected?
A) Both cells have two X chromosomes.
B) Each cell has only one X chromosome; either the cell lacks one entirely or only one X is present.
C) Each cell has an extra X chromosome, for a total of three.
D) Each cell has an extra autosome, not a sex chromosome.
Correct answer: B) Each cell has only one X chromosome; either the cell lacks one entirely or only one X
is present.
2. What is the first step during the first time genetic counseling?
A) Diagnosis of the genetic disorder
B) Pedigree analysis
C) Obtaining informed consent
D) Discussing recurrence risk
Correct answer: A) Diagnosis of the genetic disorder
3. The FNP schedules a 35yearold primigravida (firsttime pregnancy) for an initial prenatal visit at 10
weeks gestation. The FNP would explain that the purpose of prenatal genetic screening is to:
A) Diagnose the presence of a genetic disorder
B) Determine the likelihood of certain conditions
C) Provide definitive results
D) Replace the need for ultrasound
,Correct answer: B) Determine the likelihood of certain conditions
4. A 7yearold child is evaluated for short stature. Chromosomal analysis reveals a 45,X karyotype.
Which of the following is the most likely diagnosis?
A) Klinefelter syndrome
B) Turner syndrome
C) Down syndrome
D) Edwards syndrome
Correct answer: B) Turner syndrome
5. The FNP is counseling a couple with a family history of cystic fibrosis. What is the inheritance pattern
of cystic fibrosis?
A) Autosomal dominant
B) Autosomal recessive
C) Xlinked dominant
D) Xlinked recessive
Correct answer: B) Autosomal recessive
6. Which of the following is a common clinical feature of Down syndrome?
A) Tall stature
B) Single palmar crease
, C) Macrocephaly
D) Hypertonia
Correct answer: B) Single palmar crease
7. A newborn is noted to have ambiguous genitalia. Which of the following is the most appropriate initial
step?
A) Immediate surgical correction
B) Karyotype analysis
C) Referral to endocrinology only
D) Genetic counseling after age 2
Correct answer: B) Karyotype analysis
8. Which prenatal screening test is most sensitive for detecting neural tube defects?
A) Amniocentesis for karyotype
B) Maternal serum alphafetoprotein (AFP)
C) Chorionic villus sampling
D) Maternal serum estriol
Correct answer: B) Maternal serum alphafetoprotein (AFP)
9. A 21yearold woman is a carrier for an Xlinked recessive disorder. What is the risk that her son will be
affected?
