Which of the following are characteristic of serum hormone binding globulin (SHBG)?
A) Hypothalamus
B) Loosely bound to protein moiety, is biologically active and binds to estrogen
C) Thyroid gland
D) Tightly bound to protein moiety, not biologically active and binds to testosterone
Answer: Tightly bound to protein moiety, not biologically active and binds to testosterone