<prompt> Inhibin-A is produced by?Sertoli cellLeydig cellHilus cellPlacenta  <response>: Ans. D PlacentaRef: Ganong, 25th ed. pg. 409, 425: Inhibin A is produced by placenta and corpus luteum. It is used in quadruple screening for prenatal detection of down Syndrome. Inhibin B inhibits FSH in both males and females. It is produced by Sertoli cells in male and granulosa cells in female. 