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प्रश्न
Which structural chromosomal abnormality involves a chromosomal segment being copied and repeated?
पर्याय
Duplication
Translocation
Deletion
Inversion
MCQ
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उत्तर
Duplication is a structural chromosomal abnormality in which a chromosomal segment is copied and repeated on the same chromosome. This results in gene overdose with variable effects depending on which genes are duplicated. Fragile X syndrome is an example involving a repeat expansion at Xq27.3 on the X chromosome.
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