Answer:
The correct answer is option B.
Explanation:
MHC or The major histocompatibility complex is a series of genes that have information and rise to cell surface proteins required for the adaptive immune system to recognize the pathogen or the foreign molecules, There are three classes of MHC - MHC1, MHC2, and MHC3.
MHC class II generally present only on antigen-presenting cells such as single nuclear phagocytes, dendritic cells, thymic and B cells.
Thus, the correct answer is option B.
It flows from a high to low concentration gradient across the membrane.
Answer:
De la glándula pitnitaria se encuentran las hormonas llamadas dopomina, que es impulsada por los hipodtalamas, la parte del cerebro directamente sobre la glándula pituitaria. La dopapamina restringe la proyección, por lo que cuanto más dopomilo haya, menos liberación se produce