What are the possible results of gametes receiving the wrong number or proportion of chromosomes during meiosis II? Select all that apply.

If chromosomes fail to separate correctly during meiosis II, some gametes may have extra or missing chromosomes. After fertilization, this can produce a zygote that cannot survive or lead to a medical condition in the offspring. Having one copy of each chromosome is normal for a gamete, and forming two new nuclei is a normal part of cell division, not an outcome of the chromosome-number error itself.

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