Binucleated cells are found when onion root tips are examined under a microscope. what does binucleated mean? which part of the cell cycle is interrupted to cause this result?

Binuclear means two nucleus in one cell , and this happens when the nucleus divides but the cytoplasm does not divide !

so in cytokinesis the division stops !

Here, Binuclear means two nucleus in the same cell , and it occurs when the nucleus divides but the cytoplasm doesn't.

Here, "Cytokinesis" is that step which is interrupted in the cell cycle

Hope this helps!

Ithink the answer is maybe a