jean robert
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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
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| keepgoing
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D
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| drgho
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C.?
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| new_n_lost
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d.-a recombination event in the dystrophin gene that gave rise to a frameshift mutation leading to an untranslatable mRNA.
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| nerve09
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D.
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| Tiff
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Choice D
One-third of Duchenne cases are spontaneous due to chromosomal misalignment during recombination.
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