Serum testosterone and estradiol (A) and LH and FSH (B) were measured in MT-hAMH transgenics, AMH-deficient mice, and their respective littermates (control) at 2 months of age. Results represent mean and SEM for the specified number of animals, except for estradiol, where n represents the number of serum pools analyzed. ∗, P ≤ 0.05, ∗∗∗, P ≤ 0.001.