What happens if homologous chromosomes that make up a tetrad fail to separate during anaphase I?

Here's the full question-%26gt; Suppose the homologous chromosomes that make up a tetrad fail to separate during anaphase I of meiosis. Predict the results of this event.What happens if homologous chromosomes that make up a tetrad fail to separate during anaphase I?
tetrads failing to separate result in nondisjunction, so one of the daughter cells has too many chromosomes, and one has too few. down syndrome is also called trisomy 21 because the person has 3 of the 21st chromosome instead of two.