A biologist marked a cell that he knew was about to undergo meiosis. A short time later he observed the four cells produced by the original marked cell; their chromosome numbers were 17, 17, 18, and 16. He knew these numbers indicated that something abnormal had occurred during meiosis. Which of the following most likely occurred?

2 answers

What are the following? Is the below one of the choices?

NONDISJUNCTION: when 2 homologous chromosomes move to the same pole during meiosis. One daughter cell will be missing one chromosome while the other will have an extra chromosome.
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