Multiple choice Which of the following is true about binary fission? It involves the division of nucleus only. It involves the division of nucleus and then the complete cell. It involves the division of nucleus into four nuclei. The division of nucleus does not take place, but the cell divides to form daughter cells. Reveal answer Fill a bubble to check yourself B Correct answer Explanation In binary fission, first the nucleus divides into two nuclei followed by the division of the cell body into two.