Question

Frequency of Down's syndrome increases when maternal age is?

• A. Below $35$ years
• B. Above $35$ years
• C. At the time of first pregnancy
• D. After bearing three children

Answer 1

The correct option is B Above $35$ years

A woman's chances of giving birth to a child with Down syndrome increase with age because older eggs have a greater risk of improper chromosome division. A woman's risk of conceiving a child with Down syndrome increases after 35 years of age.

So, the correct answer is 'Above 35 years'.