Why is it that older women are more likely to have babies with complications like Down syndrome than younger women?


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Why is it that older women are more likely to have babies with complications like Down syndrome than younger women?


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Read the following Q and A from a geneticist and in 5-10 sentences, make connections to the material we’ve been learning in class. Why is it that older women are more likely to have babies with complications like Down syndrome than younger women? (Links to an external site.)Links to an external site. Note: The chromosome number does NOT increase to 92 before meiosis begins as the author states. The number of DNA molecules increases to 92, but there are still 46 chromosomes. Guiding questions: 1. The author says that a woman is “born with all the eggs she’ll ever have”. Eggs are the result of meiosis I and II. Is this statement entirely true? 2. At what stage of meiosis do oocytes (cells that will become eggs) arrest or stop before birth? 3. When does meiosis finish in human females? 4. Why does maternal age affect whether mistakes will be made in meiosis? Use your answers to #3 and 4 above. http://genetics.thetech.org/ask/ask234 This a link to the article