<prompt> Serum a-fetoprotein level is elevated in -Endodermal cell tumorImmature teratomaChoriocarcinomaDysgerminoma  <response>: Ans-Ai.e. Endodermal cells a tumour Ref. Shaws, 12e, p. 318, Novaks 13e, p 1283.Alpha fetoprotein along with alpha-1-antitrypsin is secreted by endodermal cell tumours.These tumours are a second most common tumour of germ cell origin. 