Which of the Following Helps Explain Why Increased Maternal Age

question 100

Multiple Choice

Which of the following helps explain why increased maternal age is correlated with an increased risk of Down syndrome?

• A) mutations accumulate in the germ line in a time-dependent manner
• B) meiosis in oocytes is incomplete before fertilization
• C) frequency of crossovers increases with gamete age
• D) barriers to double fertilization decrease in older ova
• E) kinetochore fusion is more common in older women

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