Biology, 27.05.2020 19:58 bricefitzpatrick0429

19 Down syndrome is a genetic disorder caused by the
presence of an extra chromosome in the body cells of
humans. This extra chromosome occurs in a gamete as a
result of
(1) an error in the process of cloning
(2) an error in meiotic cell division
(3) a gene mutation
(4) replication of a single chromosome during mitosis

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19 Down syndrome is a genetic disorder caused by the
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