At what point in cell division is a chromosome lost so that, after fertilization with a normal gamete, the result is a human zygote with 45 chromosomes, including a single x chromosome?
i. an error in anaphase i
ii. an error in anaphase ii
iii. an error of the first postfertilization mitosis
iv. an error in pairing
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At what point in cell division is a chromosome lost so that, after fertilization with a normal gamet...
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