In 1985 Hassold and Chiu found that the likelihood of miscarriage increased with maternal age.What is the most likely explanation for the relationship between age and miscarriage?

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The most likely explanation is that ova arrested in meiosis until ovulation are more likely to experience errors in completing meiosis in older women, resulting in an increased likelihood of chromosomal abnormalities and ultimately miscarriage. This was the finding of the 1985 study by Hassold and Chiu, and subsequent research has supported this hypothesis.

In 1985 Hassold and Chiu Found That the Likelihood of Miscarriage