If chemical signals in the cytoplasm control the progression of a cell to the M phase of the cell cycle, then fusion of a cell in G₁ with a cell in early M phase would most likely result in the

The chemical signals signaling cell division will still be present in the fused cell. During early M phase (prophase), the nuclear envelope dissapears and the chromatin condenses.

The signals do not know which cell is which, and the fused cell would behave as if it were one cell.