Cell type A secretes molecule X into the culture medium. Cell type B in the same culture responds to the

Q. Cell type A secretes molecule X into the culture medium. Cell type B in the same culture responds to the molecule X by expressing protein Y. Which one of the following modes of signaling represents the interaction between A and B?

(A) Autocrine                         

(B) Juxtacrine

(C) Paracrine                          

(D) Intracrine

Ans: Paracrine