Nursing Genetics Quiz: Inheritance & Screening

1. In autosomal dominant inheritance, what percentage of offspring will inherit the trait if one parent is heterozygous and the other is homozygous recessive?

25%

50%

75%

100%

2. A male with hemophilia A (X-linked recessive) has children with a carrier female. What is the probability their daughters will be affected?

0%

25%

50%

100%

3. Which genetic screening test is recommended during the first trimester to assess risk for chromosomal abnormalities?

Maternal serum alpha-fetoprotein

Nuchal translucency ultrasound and PAPP-A

Amniocentesis

Chorionic villus sampling

Submit

5. A pedigree shows a trait appearing in males but never passed from father to son. This pattern suggests which inheritance type?

Autosomal dominant

Autosomal recessive

X-linked recessive

Mitochondrial

6. What is the primary purpose of carrier screening in nursing practice?

Diagnose disease in affected individuals

Identify individuals at risk of passing genetic conditions to offspring

Determine medication metabolism

Screen for infectious diseases

Submit

8. True or False: Huntington disease is an example of autosomal dominant inheritance with complete penetrance.

True

False

9. Duchenne muscular dystrophy is an X-linked recessive disorder. A carrier mother has a son. What is his risk of being affected?

0%

25%

50%

100%

10. Which of the following is a recommended screening test for women of reproductive age at risk for fragile X syndrome?

Karyotype analysis

FMR1 gene expansion testing

FISH analysis

SNP microarray

Submit

12. True or False: Mitochondrial inheritance follows a maternal pattern because the egg contributes most mitochondria to the zygote.

True

False

13. A couple plans pregnancy and both have family histories of thalassemia. Which test best identifies carrier status?

Complete blood count

Hemoglobin electrophoresis

Reticulocyte count

Peripheral blood smear

Submit

15. Which prenatal screening method carries the lowest risk of miscarriage?

Amniocentesis

Chorionic villus sampling

Non-invasive prenatal testing (NIPT)

Fetal blood sampling

Nursing Genetics Quiz: Inheritance & Screening

1. In autosomal dominant inheritance, what percentage of offspring will inherit the trait if one parent is heterozygous and the other is homozygous recessive?

2.

What first name or nickname would you like us to use?

2. A male with hemophilia A (X-linked recessive) has children with a carrier female. What is the probability their daughters will be affected?

3. Which genetic screening test is recommended during the first trimester to assess risk for chromosomal abnormalities?

4. Cystic fibrosis is inherited in an ____ recessive pattern.

5. A pedigree shows a trait appearing in males but never passed from father to son. This pattern suggests which inheritance type?

6. What is the primary purpose of carrier screening in nursing practice?

7. If both parents are carriers of sickle cell trait, the probability of an affected child is ____.

8. True or False: Huntington disease is an example of autosomal dominant inheritance with complete penetrance.

9. Duchenne muscular dystrophy is an X-linked recessive disorder. A carrier mother has a son. What is his risk of being affected?

10. Which of the following is a recommended screening test for women of reproductive age at risk for fragile X syndrome?

11. A patient with a family history of breast and ovarian cancer should be screened for mutations in the ____ genes.

12. True or False: Mitochondrial inheritance follows a maternal pattern because the egg contributes most mitochondria to the zygote.

13. A couple plans pregnancy and both have family histories of thalassemia. Which test best identifies carrier status?

14. In a pedigree, a square represents a , and a circle represents a .

15. Which prenatal screening method carries the lowest risk of miscarriage?

Nursing Genetics Quiz: Inheritance & Screening

1. In autosomal dominant inheritance, what percentage of offspring will inherit the trait if one parent is heterozygous and the other is homozygous recessive?

2.

What first name or nickname would you like us to use?

2. A male with hemophilia A (X-linked recessive) has children with a carrier female. What is the probability their daughters will be affected?

3. Which genetic screening test is recommended during the first trimester to assess risk for chromosomal abnormalities?

4. Cystic fibrosis is inherited in an ____ recessive pattern.

5. A pedigree shows a trait appearing in males but never passed from father to son. This pattern suggests which inheritance type?

6. What is the primary purpose of carrier screening in nursing practice?

7. If both parents are carriers of sickle cell trait, the probability of an affected child is ____.

8. True or False: Huntington disease is an example of autosomal dominant inheritance with complete penetrance.

9. Duchenne muscular dystrophy is an X-linked recessive disorder. A carrier mother has a son. What is his risk of being affected?

10. Which of the following is a recommended screening test for women of reproductive age at risk for fragile X syndrome?

11. A patient with a family history of breast and ovarian cancer should be screened for mutations in the ____ genes.

12. True or False: Mitochondrial inheritance follows a maternal pattern because the egg contributes most mitochondria to the zygote.

13. A couple plans pregnancy and both have family histories of thalassemia. Which test best identifies carrier status?

14. In a pedigree, a square represents a ____, and a circle represents a ____.

15. Which prenatal screening method carries the lowest risk of miscarriage?

14. In a pedigree, a square represents a , and a circle represents a .