Question

Frequency of Down's syndrome increases when the maternal age is [Orissa JEE 2004]
A) Above 35 years
B) Below 35 years
C) During 1st pregnancy
D) In mothers of at least 3 children

Answer 1

hey hi....

the correct answer is option A.


>>They occur in 1/700 births in women aged 25 years or under. The frequency increases with age to about 1/100 for women of age 40 and 1/10 for women of age 45....<<<

hope this helps.
..

Answer 2

Frequency of Down's syndrome increases when the maternal age is [Orissa JEE 2004]
A) Above 35 years✔✔✔
B) Below 35 years
C) During 1st pregnancy
D) In mothers of at least 3 children