What is the first checkpoint in the cell cycle where a cell will be causes to exit the cycle is this pooint is not passed?

What is produced if a cell divides by mitosis but does not undergo ... 24) Which is the first checkpoint in the cell cycle where a cell will be caused to exit the cycle if ... 28) Which of the following triggers the cell's passage past the G2 checkpoint ... they do so at random points in the cell cycle; they are notsubject to cell cycle ...

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.