Frequency of Downs syndrome increased when the maternal age is

Question

Frequency of Downs syndrome increased when the maternal age is (A) above 35 years (B) below 35 years (C) during first pregnancy (D) in mothers of at least three children

Tardigrade Admin · Accepted Answer

Downs syndrome is the result of trisomy of 21st chromosome (autosome). The chance of a women having a baby with Downs syndrome rises when she crosses 35 years of her age.

Q. Frequency of Downs syndrome increased when the maternal age is

above 35 years

below 35 years

during first pregnancy

in mothers of at least three children

Downs syndrome is the result of trisomy of 21st chromosome (autosome). The chance of a women having a baby with Downs syndrome rises when she crosses 35 years of her age.