Give reason : Older mothers have greater chance of conceiving abnormal children.

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Solution

Older mothers are at high risk of giving birth to a baby with chromosomal abnormalities. This happens because, with the increase in age of the mother, the chances of chromosomal aberrations increase rapidly. With the increase in maternal age, the errors in meiosis are most likely to happen. The pregnancy after 30 years may be complicated as there are chances of miscarriage too.

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