Pharmacology For Canadian Health Care
Practice 4th Edition Questions & 100%
Correct Answers With Rationales
|Chapter 1-58|Brand New 2025
A 13-year-old girl has a karyotype that reveals an absent homologous X chromosome with
only a single X chromosome present. What medical diagnosis will the nurse observe on
the chart?
a. Down syndrome
b. cri du chat syndrome
c. Turner's syndrome
d. Fragile X syndrome
c. Turner's syndrome
What genetic disorder is the result if an individual possesses an XXY chromosome
configuration?
a. Turner's syndrome
b. Klinefelter's syndrome
c. Down syndrome
d. Fragile X syndrome
b. Klinefelter's syndrome
A patient demonstrates severe intellectual disability caused by a deletion of part of
chromosome 5. What genetic disorder will the nurse see documented in the chart?
a. Prader-Willi syndrome
b. Down syndrome
c. cri du chat syndrome
d. Trisomy X
c. cri du chat syndrome
An aide asks the nurse why people who have neurofibromatosis show varying degrees of
the disease. Which genetic principle should the nurse explain to the aide?
a. Penetrance
,b. Expressivity
c. Dominance
d. Recessiveness
b. Expressivity
What gene abnormality causes cystic fibrosis?
a. X-linked dominant
b. X-linked recessive
c. Autosomal dominant
d. Autosomal recessive
d. Autosomal recessive
A 15-year-old female is diagnosed with Prader-Willi syndrome. What is this condition an
example of?
a. Genomic imprinting
b. An autosomal recessive trait
c. An autosomal dominant trait
d. A sex-linked trait
a. Genomic imprinting
A patient, age 9, is admitted to a pediatric unit with Duchenne muscular dystrophy. When
planning care, the nurse recalls that the patient inherited this condition through a trait that
is:
a. X-linked dominant.
b. X-influenced.
c. X-limited.
d. X-linked recessive.
d. X-linked recessive.
A child is diagnosed with cystic fibrosis. History reveals that the child's parents are
siblings. Cystic fibrosis was most likely the result of:
a. X-inactivation.
b. genomic imprinting.
c. consanguinity.
d. obligate carriers.
c. consanguinity.
A 12-year-old male is diagnosed with Klinefelter's syndrome. His karyotype would reveal
which of the following?
, a. XY
b. XX
c. XYY
d. XXY
d. XXY
What is needed for a polygenic trait to be expressed?
a. Genes must interact with the environment.
b. Several genes must act together.
c. Multiple mutations must occur in the same family.
d. Penetrance must occur.
b. Several genes must act together
A 13-year-old female has a karyotype that reveals an absent homologous X chromosome
with only a single X chromosome present. Her features include a short stature, widely
spaced nipples, and a reduced carrying angle at the elbow. What is her diagnosis?
a. Down syndrome
b. cri du chat syndrome
c. Turner's syndrome
d. Klinefelter's syndrome
c. Turner's syndrome
The gradual increase in height among the human population over the past 100 years is an
example of:
a. a polygenic trait.
b. a multifactorial trait.
c. crossing over.
d. recombination.
b. a multifactorial trait.
When discussing DNA replication, which enzyme is most important?
a. RNA polymerase
b. Transfer RNA
c. Messenger RNA
d. DNA polymerase
d. DNA polymerase
What regions of RNA must be spliced out for functional mRNA to be formed?
a. Promoter sites
Practice 4th Edition Questions & 100%
Correct Answers With Rationales
|Chapter 1-58|Brand New 2025
A 13-year-old girl has a karyotype that reveals an absent homologous X chromosome with
only a single X chromosome present. What medical diagnosis will the nurse observe on
the chart?
a. Down syndrome
b. cri du chat syndrome
c. Turner's syndrome
d. Fragile X syndrome
c. Turner's syndrome
What genetic disorder is the result if an individual possesses an XXY chromosome
configuration?
a. Turner's syndrome
b. Klinefelter's syndrome
c. Down syndrome
d. Fragile X syndrome
b. Klinefelter's syndrome
A patient demonstrates severe intellectual disability caused by a deletion of part of
chromosome 5. What genetic disorder will the nurse see documented in the chart?
a. Prader-Willi syndrome
b. Down syndrome
c. cri du chat syndrome
d. Trisomy X
c. cri du chat syndrome
An aide asks the nurse why people who have neurofibromatosis show varying degrees of
the disease. Which genetic principle should the nurse explain to the aide?
a. Penetrance
,b. Expressivity
c. Dominance
d. Recessiveness
b. Expressivity
What gene abnormality causes cystic fibrosis?
a. X-linked dominant
b. X-linked recessive
c. Autosomal dominant
d. Autosomal recessive
d. Autosomal recessive
A 15-year-old female is diagnosed with Prader-Willi syndrome. What is this condition an
example of?
a. Genomic imprinting
b. An autosomal recessive trait
c. An autosomal dominant trait
d. A sex-linked trait
a. Genomic imprinting
A patient, age 9, is admitted to a pediatric unit with Duchenne muscular dystrophy. When
planning care, the nurse recalls that the patient inherited this condition through a trait that
is:
a. X-linked dominant.
b. X-influenced.
c. X-limited.
d. X-linked recessive.
d. X-linked recessive.
A child is diagnosed with cystic fibrosis. History reveals that the child's parents are
siblings. Cystic fibrosis was most likely the result of:
a. X-inactivation.
b. genomic imprinting.
c. consanguinity.
d. obligate carriers.
c. consanguinity.
A 12-year-old male is diagnosed with Klinefelter's syndrome. His karyotype would reveal
which of the following?
, a. XY
b. XX
c. XYY
d. XXY
d. XXY
What is needed for a polygenic trait to be expressed?
a. Genes must interact with the environment.
b. Several genes must act together.
c. Multiple mutations must occur in the same family.
d. Penetrance must occur.
b. Several genes must act together
A 13-year-old female has a karyotype that reveals an absent homologous X chromosome
with only a single X chromosome present. Her features include a short stature, widely
spaced nipples, and a reduced carrying angle at the elbow. What is her diagnosis?
a. Down syndrome
b. cri du chat syndrome
c. Turner's syndrome
d. Klinefelter's syndrome
c. Turner's syndrome
The gradual increase in height among the human population over the past 100 years is an
example of:
a. a polygenic trait.
b. a multifactorial trait.
c. crossing over.
d. recombination.
b. a multifactorial trait.
When discussing DNA replication, which enzyme is most important?
a. RNA polymerase
b. Transfer RNA
c. Messenger RNA
d. DNA polymerase
d. DNA polymerase
What regions of RNA must be spliced out for functional mRNA to be formed?
a. Promoter sites
