HCR 240 Final Exam Test Questions
with Guaranteed Pass Solutions Final
Exam and Correct Answers.
The base components of DNA are:
A.) A, G, C and U
B.) P, G, C and T
C.) A, G, C and T
D.) X, XX, XY and YY - Answer A, G, C, T
A 20-year-old pregnant female gives birth to a stillborn child. Autopsy reveals that the fetus has
92 chromosomes. What term may be on the autopsy report to describe this condition?
A.) Biploidy
B.) Triploidy
C.) Tetraploidy
D.) Aneuploidy - Answer Tetraploidy
A patient wants to know the risk factors for Down syndrome. What is the nurse's best response?
A.)Fetal exposure to mutagens in the uterus.
B.) Increased paternal age.
C.) Family history of Down syndrome.
D.) Pregnancy in women over age 35. - Answer Pregnancy in women over age 35.
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
,What genetic disorder is the result if an individual possesses an XXY chromosome
configuration?
A.) Turner
B.) Klinefelter
C.) Down
D.) Fragile X - Answer Klinefelter
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. - Answer consanguinity.
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 - Answer a multifactorial trait.
When discussing DNA replication, which enzyme is most important?
A.) RNA polymerase
B.) Transfer RNA
C.) Messenger RNA
D.) DNA polymerase - Answer DNA polymerase
When the nurse is teaching the staff about X-linked recessive disorders, which information
,- The gene can be transmitted through a series of carrier females
- The gene is passed from an affected father to all his daughters.
- The trait never skips generations - Answer The trait is never transmitted from father to son.
The gene can be transmitted through a series of carrier females.
The gene is passed from an affected father to all his daughters.
Research has demonstrated that neural stem cells have an impaired ability to differentiate into
functional neurons when subjected to:
A.) ethanol
B.) marijuana
C.) insufficient nutrients
D.) poor oxygenation - Answer ethanol.
During which stage of human development does the role of epigenetics have the greatest
impact on the development of epigenetic abnormalities?
A.) infancy
B.) puberty
C.) In utero
D.) middle age - Answer In utero
Research has provided support for the theory that epigenetic modifications can result from
deficient in utero nutrition causing which chronic disease? (select all that apply)
- obesity
- asthma
-cardiovascular disease
- diabetes
- crohn's disease - Answer Obesity
, The embryo/fetus is most vulnerable to teratogenic agents during:
A.) The first trimester of pregnancy
B.) The second trimester of pregnancy
C.) The time of delivery
D.) All of the above - Answer The first trimester of pregnancy
Mr.and Mrs. Ready are seeking genetic counselling. Mrs.Ready knows that she carries the gene
for PKU (Phenylketonuria). Based on your understanding of genetics and the pathophysiology of
PKU, which of the following is true?
A.) PKU results from defective transport of the chloride ion.
B.) An infant with PKU will not have any brain damage
C.) PKU is an enzyme deficiency, resulting in inability to metabolize phenylalanine
D.) PKU is connective tissue disorder - Answer PKU is an enzyme deficiency, resulting in
inability to metabolize phenylalanine
An ordered photographic display of a set of chromosomes from a single cell is a
A.) Chromosomal structure
B.) Genetic impring
C.) Karyotype
D.) Single gene display - Answer Karyotype
Which form of cell communication is used to relate to other cells in direct physical contact?
A.) cell junction
B.) gap junction
C.) desmosome
D.) tight junction - Answer cell junction
A runner has depleted all the oxygen available for muscle energy. Which of the following will
with Guaranteed Pass Solutions Final
Exam and Correct Answers.
The base components of DNA are:
A.) A, G, C and U
B.) P, G, C and T
C.) A, G, C and T
D.) X, XX, XY and YY - Answer A, G, C, T
A 20-year-old pregnant female gives birth to a stillborn child. Autopsy reveals that the fetus has
92 chromosomes. What term may be on the autopsy report to describe this condition?
A.) Biploidy
B.) Triploidy
C.) Tetraploidy
D.) Aneuploidy - Answer Tetraploidy
A patient wants to know the risk factors for Down syndrome. What is the nurse's best response?
A.)Fetal exposure to mutagens in the uterus.
B.) Increased paternal age.
C.) Family history of Down syndrome.
D.) Pregnancy in women over age 35. - Answer Pregnancy in women over age 35.
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
,What genetic disorder is the result if an individual possesses an XXY chromosome
configuration?
A.) Turner
B.) Klinefelter
C.) Down
D.) Fragile X - Answer Klinefelter
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. - Answer consanguinity.
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 - Answer a multifactorial trait.
When discussing DNA replication, which enzyme is most important?
A.) RNA polymerase
B.) Transfer RNA
C.) Messenger RNA
D.) DNA polymerase - Answer DNA polymerase
When the nurse is teaching the staff about X-linked recessive disorders, which information
,- The gene can be transmitted through a series of carrier females
- The gene is passed from an affected father to all his daughters.
- The trait never skips generations - Answer The trait is never transmitted from father to son.
The gene can be transmitted through a series of carrier females.
The gene is passed from an affected father to all his daughters.
Research has demonstrated that neural stem cells have an impaired ability to differentiate into
functional neurons when subjected to:
A.) ethanol
B.) marijuana
C.) insufficient nutrients
D.) poor oxygenation - Answer ethanol.
During which stage of human development does the role of epigenetics have the greatest
impact on the development of epigenetic abnormalities?
A.) infancy
B.) puberty
C.) In utero
D.) middle age - Answer In utero
Research has provided support for the theory that epigenetic modifications can result from
deficient in utero nutrition causing which chronic disease? (select all that apply)
- obesity
- asthma
-cardiovascular disease
- diabetes
- crohn's disease - Answer Obesity
, The embryo/fetus is most vulnerable to teratogenic agents during:
A.) The first trimester of pregnancy
B.) The second trimester of pregnancy
C.) The time of delivery
D.) All of the above - Answer The first trimester of pregnancy
Mr.and Mrs. Ready are seeking genetic counselling. Mrs.Ready knows that she carries the gene
for PKU (Phenylketonuria). Based on your understanding of genetics and the pathophysiology of
PKU, which of the following is true?
A.) PKU results from defective transport of the chloride ion.
B.) An infant with PKU will not have any brain damage
C.) PKU is an enzyme deficiency, resulting in inability to metabolize phenylalanine
D.) PKU is connective tissue disorder - Answer PKU is an enzyme deficiency, resulting in
inability to metabolize phenylalanine
An ordered photographic display of a set of chromosomes from a single cell is a
A.) Chromosomal structure
B.) Genetic impring
C.) Karyotype
D.) Single gene display - Answer Karyotype
Which form of cell communication is used to relate to other cells in direct physical contact?
A.) cell junction
B.) gap junction
C.) desmosome
D.) tight junction - Answer cell junction
A runner has depleted all the oxygen available for muscle energy. Which of the following will
