<prompt> Triple test for diagnosis of downs syndrome includes all of the following except -b-HCGa-FetoproteinSerum HPL levelSerum oestriol level  <response>: Ans is c i.e., Serum HPL levels Triple test is a combined biochemical test which includes -- MSAFP, HCG, Oestriol In an affected pregnancy - level of MSAFP is decreased - level of oestriol is decreased - level of hCG is High increased 