Final answer:
Statement B, which states that the cell cycle is similar in all eukaryotes, is the false statement as there can be variations in cell cycle regulation and stages among different eukaryotic species.
Step-by-step explanation:
The false statement among the options provided is B. Cell cycle is similar in all eukaryotes. While the cell cycle in eukaryotic cells is generally similar, with phases that include interphase (G1, S, G2) and mitotic phase (M), there can be differences in how the cell cycle is regulated, lengths of the phases, and specific cellular events that occur during these stages across different eukaryotic species.
Statement A, which says the cell cycle may exhibit different stages in different eukaryotes, reflects the variation found among different organisms. Statement C, which claims the cell cycle is totally dissimilar in different eukaryotes, is incorrect because although there can be differences, the general stages and processes of the cell cycle (interphase, mitosis, and cytokinesis) are fundamentally similar across eukaryotes. Lastly, statement D cannot be true since statement B is false.