At which stage non disjunction occurs...?
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During meiosis , if nondisjunction occurs , it takes place during the anaphase when the chromosome are separated on the spindle fiber and directed to opposite poles.
Down's syndrome is a condition also known as trisomy 21, which means there are three copies of 21st chromosome unlike the normal two copies .
Down's syndrome is a condition also known as trisomy 21, which means there are three copies of 21st chromosome unlike the normal two copies .
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