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Author7 Posts
  #1

A boy with Duchenne muscular dystrophy was born with no family history of the disease. The most likely explanation for this occurrence is:

A.- a CGG expansion that resulted in the disruption of the promoter of the dystrophin gene.

b.-Infedelity

c.- a point mutation in the dystrophin gene.

d.-a recombination event in the dystrophin gene that gave rise to a frameshift mutation leading to an untranslatable mRNA.

e.-a translocation that resulted in the disruption of the dystrophin gene





  #2

D



  #3

C.?


  #4

d.-a recombination event in the dystrophin gene that gave rise to a frameshift mutation leading to an untranslatable mRNA.



  #5

D.


  #6

Choice D

One-third of Duchenne cases are spontaneous due to chromosomal misalignment during recombination.



  #7

nodnod





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