Question 1

A nurse providing genetic counseling explains that when one parent has an autosomal dominant gene for an inherited disease, the chances of the child being affected are

Accepted Answer

A)   10%.
B)   25%.
C)   50%.
D)   100%. C

Question 2

A nurse educating clients in a genetic screening clinic explains that recessive genes on autosomal chromosomes can be passed on

Accepted Answer

A)   to children of either gender.
B)   only to males.
C)   only to females.
D)   to females after skipping a generation. A

Question 3

The nurse working with clients who seek genetic testing has an important role in (Select all that apply)

Accepted Answer

A)   ensuring privacy and confidentiality.
B)   helping the client negotiate disruptions in family dynamics.
C)   recognizing the potential for stigmatization.
D)   understanding the process of informed consent. A, B, C, D

Question 4

The nurse obtaining consent for genetic testing realizes that the elements of informed consent include (Select all that apply)

Accepted Answer

A)   other options for risk assessment.
B)   the possibility that the results will be ambiguous.
C)   procedures for giving results to insurance companies.
D)   risks that nonrelatedness will be discovered.
E)   the purpose of the test.

Question 5

Autosomes are the chromosomes that

Accepted Answer

A)   are common to males and females.
B)   are inherited from the paternal side.
C)   determine gender.
D)   exist in paired forms.

Question 6

The Human Genome Project (HGP) was begun in 1990 to

Accepted Answer

A)   alter the course of inherited disorders.
B)   clone an animal, then a human.
C)   determine the location of genes on chromosomes.
D)   replicate the structure of deoxyribonucleic acid (DN
A)  .

Question 7

A nurse counseling a couple about genetic disorders explains that Tay-Sachs disease is a genetically linked disorder seen in 7% of the

Accepted Answer

A)   African-American ethnic group.
B)   Ashkenazi Jewish ethnic group.
C)   Hispanic ethnic group.
D)   Northern European ethnic group.

Question 8

The nurse working on a general medical-surgical unit in the hospital cares for clients with a variety of diseases that have a genetic component, including (Select all that apply)

Accepted Answer

A)   Alzheimer's disease.
B)   chronic obstructive pulmonary disease.
C)   diabetes.
D)   heart disease.
E)   sickle cell anemia.

Question 9

The nurse explains to a client that the condition of a sperm or egg having an irregular number of chromosomes is called

Accepted Answer

A)   aneuploidy.
B)   genotype.
C)   phenotype.
D)   polypeptide.

Question 10

The nurse counseling a couple that wish to obtain genetic testing before starting a family explains that the purpose of such screening is to

Accepted Answer

A)   allow genetic-defect-free individuals to obtain insurance discounts.
B)   identify individuals who are healthy but carry a disease-carrying gene.
C)   prevent genetically-based diseases from being transmitted.
D)   provide genetic analysis to anyone who desires it.

Question 11

A nurse explains to a family that if a man has a recessive gene on his X chromosome, that characteristic can be passed on to

Accepted Answer

A)   any child of either gender.
B)   his daughters.
C)   his sons.
D)   no child as it is a random mutation.

Question 12

The nurse working with clients who seek genetic counseling or testing helps the client and family manage potential psychosocial distress that can accompany test results, including (Select all that apply)

Accepted Answer

A)   disclosure of nonrelatedness.
B)   disrupted family processes.
C)   guilt feelings for passing on diseases.
D)   impairment in self-esteem.
E)   survivor guilt.

Exam 15: Perspectives in Genetics