The phenomena that can result from nondisjunction in humans include failed development due to missing genetic material and an extra copy of a chromosome trisomy.
Chromosome nondisjunction refers to the faulty separation of homologous chromosomes during meiosis which may lead to a series of genetic problems due to the presence of extra genetic material or the absence of chromosomes conveying essential information.
Therefore, with this data, we can see that chromosome nondisjunction may generate different types of genetic defects associated with the presence of an extra chromosome, which is called trisomy.
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