Question: Which statement about Down's syndrome is false? Affected individuals have an extra set of chromosome. The cause is a non-disjunction when chromosomes do not

Which statement about Down's syndrome is false? Affected individuals have an extra

Which statement about Down's syndrome is false? Affected individuals have an extra set of chromosome. The cause is a non-disjunction when chromosomes do not separate during the first meiotic division. The frequency increases dramatically in mothers over the age of 40. The long time lag between onset of meiosis in ovarian tissue (during fetal development) and its completion (at ovulation) is most likely the reason for increased incidence in older mothers.

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