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NUR3125 Exam 1 Study Guide
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NUR3125 Exam 1 Study GuideIntrons - Answer The regions of the heterogeneous nuclear RNA that must be spliced
out to form functional RNA are called
True - Answer In most cases of recessive disease, both parents of affected individuals
are heterozygous carriers.
Tetraploidy - Answer The autopsy of fetus that died at 8 months gestation reveal that the
fetus had 92 chromosomes. The description of this condition is
True - Answer The blending of multiple genes and environmental influences results in
the production of a multifactorial trait.
The person who is first diagnosed with a genetic disease - Answer A nurse is reviewing
the pedigree chart. When checking for a proband, what is the nurse looking for?
50% - Answer A couple has three offspring: one child with an autosomal dominant
disease trait and two who are normal. The father is affected by the autosomal dominant
disease, but the mother does not have the disease gene. What is the recurrence risk of
this autosomal dominant disease for their next child?
Tay-Sachs disease - Answer Parents of a 3-month-old infant bring him to the emergency
room (ER) after he has had a seizure. He has muscle rigidity, and the parents report they
are of Jewish ancestry. For what genetic disease should this infant be screened?
Cardiac assessment for coarctation of the aorta - Answer While assessing a patient
diagnosed with Marfan's Syndrome, the nurse should include which of the following that
is consistent with the syndrome?
Autosomal recessive - Answer A geneticist is discussing cystic fibrosis (CF). Which
information should be included? CF is an _____ disease.
All daughters of affected fathers are carriers. - Answer Characteristics of X-linked
recessive disorders include which of the following?
An IQ of 25 to 70, low nasal bridge, protruding tongue, and flat, low-set ears - Answer
Which clinical manifestations would be expected for a child who has complete trisomy of
the twenty-first chromosome?
Klinefelter's - Answer __________ syndrome occurs in males when there is an extra X
chromosome.
Pregnancy in women over age 35 - Answer A patient wants to know the risk factors for
Down syndrome. What is the nurse's best response?
nondisjunction. - Answer The term for an error in which homologous chromosomes fail
, to separate during meiosis or mitosis is:
Several genes must act together. - Answer To express a polygenic trait:
Genetic defect - Answer The nurse would correctly respond that the etiology of a
congenital immune deficiency is due to a(n):
True - Answer The blending of multiple genes and environmental influences results in
the production of a multifactorial trait.
Partial trisomy - Answer The condition in which an extra portion of a chromosome is
present in each cell is called:
Delayed age of onset - Answer A 50-year-old male was recently diagnosed with
Huntington disease. Transmission of this disease is associated with:
True - Answer In most cases of recessive disease, both parents of affected individuals
are heterozygous carriers.
Have a mild form of the - Answer After a geneticist talks to the patient about being a
chromosomal mosaic, the patient asks the nurse what that means. How should the
nurse respond? You may _____ genetic disease(s).
A multifactorial trait - Answer The gradual increase in height among the human
population over the past 100 years is an example of:
Males most affected; no females affected - Answer A normal male and a female carrier
for red-green color blindness mate. Given that red-green color blindness is an X-linked
recessive trait, what is the likelihood of their children being affected?
Duplication at fragile sites - Answer A 5-year-old male presents with mental retardation
and is diagnosed with fragile X syndrome. When the parents ask what caused this, how
should the geneticist respond? This was most probably caused from:
Caseous necrosis - Answer A group of prison inmates developed tuberculosis following
exposure to an infected inmate. On examination, tissues were soft and granular (like
clumped cheese). Which of the following is the most likely cause?
Coagulative necrosis - Answer A 2-year-old swallowed watch batteries. Following
ingestion, kidney function was impaired, and the heart began to fail. Which of the
following was the most likely cause?
True - Answer Severe hypoxia to cardiac muscle tissue can result in coagulative
necrosis.
Calcium - Answer A common pathway of irreversible cell injury involves increased
intracellular:
reactive oxygen species
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