[Campbell Biology P.1011] According to Figure 43.16, which of the following events occurs imm... | Practice Question

According to Figure 43.16, which of the following events occurs immediately after a particular antigen binds to the antigen receptors of a selected B cell?

  • A: The selected B cell develops directly into short-lived plasma cells.
  • B: The selected B cell proliferates, forming a clone of identical cells.
  • C: The newly formed memory cells begin to secrete antibodies.
  • D: Other daughter cells develop into long-lived memory cells.

Explanation

Figure 43.16 clearly illustrates clonal selection. Step 1 shows antigen binding, and immediately after that, Step 2 indicates that 'The selected B cell proliferates, forming a clone of identical cells bearing receptors for the antigen.'