In nondisjunction, if members of a pair of homologous chromosomes do not move apart during meiosis I or sister chromatids fail to separate during meiosis II, this means one gamete receives 2 of the same kind of chromosome and i<span>f either one of these abnormal gametes unites with a normal one at fertilization, the zygote will also have an abnormal number of particular chromosomes; which is known as an aneuploidy.</span>
A.) Multicellular <span>organisms are made up of many different groups of specialized cells
Hope this helps!</span>
Molecule X is a nucleotide
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1 = Birds, 2 = Mammals, 3 = Amphibians.
I took the test
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