Alkylating agents work to prevent the cell from replicating its genetic material, thus preventing cell division. which checkpoint would the cell most likely stop at?

Since alkylating agents work to prevent the cell from replicating its genetic material, the cell would most likely stop at the interphase checkpoint, which is the phase before mitosis (which consists of prophase, metaphase, anaphase, and telophase). During interphase, the cell replicates its genetic material (DNA), but this would be prohibited by alkylating agents.

Centriole.centrioles are present in animal cells but are usually absent in plant cells.