Frequency of Down’s syndrome increase when the maternal age is

Frequency of Down’s syndrome increase when the maternal age is

Options

(a) above 35 years
(b) below 35 years
(c) during 1st pregnancy
(d) in mothers of atleast 3 children

Correct Answer:

above 35 years

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. Companion cells are closely associated with :
  2. Which one of the following groups of animals reproduces only by sexual means?
  3. The technique of growing plants in water culture is called
  4. The three germinal layers of the gastrula gives rise to
  5. Down’s syndrome in humans is due to