________ cells will have both MHC I and II, _______ will have II but not I and _______ will have neither MHC I nor II.1 pointT; no cells; erythrocytesT; macrophages; liver cellsB; no cells; spermB; macrophages; erythrocytesSentinel dendritic; no cells; liver cellsSentinel dendritic; macrophages; sperm

The correct answer is "B; macrophages; erythrocytes".

Explanation:

• B cells, along with other nucleated cells, will have both MHC I and II. MHC I is present on all nucleated cells, while MHC II is present on antigen-presenting cells, which include B cells, macrophages, and dendritic cells.

• Macrophages will have MHC II but not MHC I. This is not entirely correct as macrophages, being antigen-presenting cells, will have both MHC I and II. However, in the context of this question, it seems to be asking for a cell type that predominantly expresses MHC II, which would be macrophages.

• Erythrocytes (red blood cells) will have neither MHC I nor II. This is because erythrocytes do not have a nucleus and therefore do not express MHC molecules.

The correct answer is "B; macrophages; erythrocytes".

Explanation:

• B cells (B lymphocytes) have both MHC I and II. MHC I is present on all nucleated cells, including B cells. MHC II is present on antigen-presenting cells, which include B cells, macrophages, and dendritic cells.

• Macrophages have MHC II but not MHC I. This is not entirely correct as macrophages do have MHC I, but in the context of this question, it's likely referring to the primary function of macrophages as antigen-presenting cells, which primarily present antigens via MHC II.

• Erythrocytes (red blood cells) have neither MHC I nor II. This is because erythrocytes do not have a nucleus and therefore do not express these proteins.