In which process do paired chromosomes normally separate from each other?

• Correct Answer: meiosis
• diffusion
• mutations
• gametes

Explanation: In the process of meiosis, paired chromosomes normally separate from each other. They end up in different gametes. Sometimes, however, errors occur. The paired chromosomes fail to separate. When this happens, some gametes get an extra copy of a chromosome. Other gametes are missing a chromosome. If one of these gametes is fertilized and survives, a chromosomal disorder results. You can see examples of such disorders in Table below.

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