sandra
Forum Guru
Topics: 200
Posts: 468
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6. A 35-year-old woman, gravida 2, para 2, comes to
the physician for preconceptional counseling. She has
an 8-year-old daughter and a 5-year-old son. Both have
mild developmental delay. The woman's brother, aged 32
years, has mild mental retardation and fragile X
syndrome. Which of the following is the most likely
cause of the developmental delay in this woman's
children?
A. Chromosomal aneuploidy
B. Expansion of trinucleotide repeat
C. Imprinting
D. Uniparental disomy
E. X chromosome deletion
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| star1
Forum Guru
Topics: 93
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B. Expansion of trinucleotide repeat
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| DrS
Forum Elite
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B. Expansion of trinucleotide repeat
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| sridevibandaru24
Forum Guru
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B
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| muzammil
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b
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| MRMAVERICK
Forum Guru
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YA B-THIS X LINKED DOMINANT DISEASE SHOW EXPANSION OF TRINUCLEOTIDE REPEATS IN SUCCESIVE GENERATIONS-
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| MRMAVERICK
Forum Guru
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| nari
Forum Newbie
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b
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| klimt
Forum Guru
Topics: 27
Posts: 605
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Yes it's B
And it's indeed dominant cuz the girl has it too...
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