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Genetics MCN 568 Exam Questions and Answers 100% Pass

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Genetics MCN 568 Exam Questions and Answers 100% Pass what is the genetic factor of congenital myotonic dystrophy? - Autosomal Dominant The following clinical features are found in what single-gene disorder? poor sucking, difficulty swallowing, generalized hypotonia, facial diplegia ( weakness ...

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  • February 24, 2025
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  • 2024/2025
  • Exam (elaborations)
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  • MCN 568
  • MCN 568
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Genetics MCN 568 Exam Questions
and Answers 100% Pass


what is the genetic factor of congenital myotonic dystrophy? - ✔✔Autosomal Dominant


The following clinical features are found in what single-gene disorder? poor sucking,

difficulty swallowing, generalized hypotonia, facial diplegia ( weakness on both sides),

clubfoot, cataracts, ptosis, mental retardation, tent-shaped mouth, gonadal

insufficiency, respiratory failure - ✔✔Congenital myotonic dystrophy


Nerve conduction velocities are normal in what single gene disorder? A) congenital

myotonic disorder B) CF C)OI - ✔✔A) congenital myotonic dystrophy


Many die in infancy due to repsiratory failure with this single gene disorder -

✔✔congenital myotonic dystrophy


Estimated % are autosomal dominant with marked variability in expression -

✔✔Osteogenesis imperfecta


NTD's, clubfoot, pyloric stenosis, hypospadias and cleft lip and palate all demonstrate

with of the following patterns of inheritance




100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 1

,A) sex linked


B) multifactorial


C) autosomal recessive - ✔✔multifactorial


The most common type of NTD is


A) anencephaly


B) encephalocele


C) myelomeningocele


D) meningocele - ✔✔myelomeningocele


An increased risk of behavior problems is associated with which disorder? - ✔✔XYY


Approximately 95% of these syndromes are aborted spontaneously and the female to

male ratio is 3:1? - ✔✔Trisomy 18(Edward)


Complete trisomy, translocation and mosaic forms are genetic factors of what

syndrome? - ✔✔Trisomy 18(Edwards)


Congenital lymphadema and widely spaced nipples are common in which of the

following disorders?


A. XO(turner) syndrome


B.XXY (Kleinfelter) Synfrome




100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 2

, C. XYY


D.(xxx)triple x syndrome - ✔✔A.Turner


Consanguinity is an important issue in which inheritance pattern? - ✔✔B. Autosomal

recessiue


Genetic Factors of this syndrome include extra chromosome usually arises from non-

disjunction in maternal meiosis I. 20% caused by unbalanced translocation - ✔✔Trisomy

13(patau)


Hypogonadism + Hypogenitalism are common in which disorder? - ✔✔Klinefetter


In what syndrome are males always infertile - ✔✔Downs


Meiotic error usually is paternal in what syndrome? - ✔✔Monosomy X ( Turner

Syndrome)


Monosomies tend to be more ________ than trisomies - ✔✔detereterious


Most common chromosomal abnormality? - ✔✔Downs


Most common clinical features of this syndrome include the following:


severe mental deficiency


CHD


cleft lip and palate




100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 3

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