NURS 6320 Group 7 Ch 4, 5, 17, 20
(Latest Update )
QUESTIONS AND CORRECT DETAILED
ANSWER [GRADE A+]
What is the second most commonly recognized genetic cause of mental retardation?
a. Down syndrome
c. Klinefelter syndrome
b. Fragile X syndrome
d. Turner syndrome - correct answer ANS: B
The fragile X syndrome is the second most common genetic cause of mental
retardation (after Down syndrome). The correct option is not observed with enough
frequency to be recognized as the second most common cause of mental retardation.
Cystic fibrosis is caused by what type of gene?
a. X-linked dominant
c. Autosomal dominant
b. X-linked recessive
d. Autosomal recessive - correct answer ANS: D
The most common lethal autosomal recessive disease in white children, cystic fibrosis,
occurs in approximately 1 in 2500 births. The correct option is the only one that
accurately identifies the gene type responsible for cystic fibrosis.
The presence of a zygote having one chromosome with the normal complement of
genes and one with a missing gene is characteristic of which genetic disorder?
a. Cri du chat
c. Klinefelter syndrome
, NURS 6320 Group 7 Ch 4, 5, 17, 20
(Latest Update )
QUESTIONS AND CORRECT DETAILED
ANSWER [GRADE A+]
b. Down syndrome
d. Turner syndrome - correct answer ANS: A
This description is only accurate for Cri du chat syndrome.
A child with which genetic disorder has a characteristic cry?
a. Down syndrome
c. Turner syndrome
b. Klinefelter syndrome
d. Cri du chat - correct answer ANS: D
Cri du chat, which literally means "cry of the cat," describes the characteristic cry of
the affected child. The correct option is the only one with the characteristic cry
Which disorders have similar modes of inheritance? (Select all that apply.)
a. Cri du chat syndrome
b. Duchenne muscular dystrophy
c. Polycystic kidney disease
d. Down syndrome
e. Becker muscular dystrophy - correct answer ANS: B, E
Becker muscular dystrophy and Duchenne muscular dystrophy are the only options
that are X-linked recessive disorders.
(Latest Update )
QUESTIONS AND CORRECT DETAILED
ANSWER [GRADE A+]
What is the second most commonly recognized genetic cause of mental retardation?
a. Down syndrome
c. Klinefelter syndrome
b. Fragile X syndrome
d. Turner syndrome - correct answer ANS: B
The fragile X syndrome is the second most common genetic cause of mental
retardation (after Down syndrome). The correct option is not observed with enough
frequency to be recognized as the second most common cause of mental retardation.
Cystic fibrosis is caused by what type of gene?
a. X-linked dominant
c. Autosomal dominant
b. X-linked recessive
d. Autosomal recessive - correct answer ANS: D
The most common lethal autosomal recessive disease in white children, cystic fibrosis,
occurs in approximately 1 in 2500 births. The correct option is the only one that
accurately identifies the gene type responsible for cystic fibrosis.
The presence of a zygote having one chromosome with the normal complement of
genes and one with a missing gene is characteristic of which genetic disorder?
a. Cri du chat
c. Klinefelter syndrome
, NURS 6320 Group 7 Ch 4, 5, 17, 20
(Latest Update )
QUESTIONS AND CORRECT DETAILED
ANSWER [GRADE A+]
b. Down syndrome
d. Turner syndrome - correct answer ANS: A
This description is only accurate for Cri du chat syndrome.
A child with which genetic disorder has a characteristic cry?
a. Down syndrome
c. Turner syndrome
b. Klinefelter syndrome
d. Cri du chat - correct answer ANS: D
Cri du chat, which literally means "cry of the cat," describes the characteristic cry of
the affected child. The correct option is the only one with the characteristic cry
Which disorders have similar modes of inheritance? (Select all that apply.)
a. Cri du chat syndrome
b. Duchenne muscular dystrophy
c. Polycystic kidney disease
d. Down syndrome
e. Becker muscular dystrophy - correct answer ANS: B, E
Becker muscular dystrophy and Duchenne muscular dystrophy are the only options
that are X-linked recessive disorders.
