Medicine Endocrinology 47333eb2 Which of the following statements about Pseudohypoprathyroidismistrue- A Caused by 'Gain of!ftmction' inherited mutation in Gsa subunit B Decreased formation of cyclic GMP is observed C Decreased formation of Inositol triphosphate is observed D Decreased formation of c-AMP is observed High-Yield Explanation decreased urinary cyclic AMP responses to PTH , presumably with a post -GS alpha defect in adenyl cyclase stimulation ( Harrison 17 pg 2394)