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Author Question: Which of the following is FALSE of Down syndrome? (Read 46 times)

torybrooks

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Which of the following is FALSE of Down syndrome?
◦ Studying individuals with partial trisomy of chromosome 21 identified the Down syndrome critical region (DSCR) with a small number of genes responsible for the principal symptoms.
◦ There are homologs in model organisms, such as mice and Drosophila, for genes in the Down syndrome critical region (DSCR).
◦ Molecular genetic analysis of the chromosomes in infants with trisomy 21 determined that the majority of cases were attributable to maternal nondisjunction in meiosis I.
◦ Down syndrome is the most common triploidy (3n) in which individuals have three sets of chromosomes.
◦ There is a link between the increased risk of Down syndrome and increased maternal age at conception.


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Marked as best answer by torybrooks on Jan 12, 2022

CourtneyCNorton

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torybrooks

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Reply 2 on: Jan 12, 2022
Excellent


CAPTAINAMERICA

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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