The interphase continuum of stages, G 1, S, and G 2, begins the process in which the cell grows and matures (G 1), followed by the S phase in which the DNA is copied.Finally, the G 2 phase is when the cell prepares for division.

If you have a microscope (400x) and a properly stained slide of the onion root tip (or allium root tip), you can see the phases in different cells, frozen in time. In the drawings below, you can see the chromosomes in the nucleus going through the process of mitosis, or division. This process is called Mitosis and there are four distinct stages. Prometaphase is the second stage of mitosis. spindle fibers emerge from the centrosomes. In prophase, chromosomes condense and become visible. To begin, let's explore the different stages of mitosis. Hence, option 4 is an incorrect statement. Anaphase II does not occur during mitosis. Anaphase II is a substage during the meiosis II stage of the meiosis process. Hence, option 1 and option 3 are incorrect statements. The separation of the sister chromatids occurs in both the mitosis and meiosis processes. If not corrected in time, mistakes made during mitosis can result in changes in the DNA that can potentially lead to genetic disorders. The major purpose of mitosis is for growth and to replace worn out cells. The cell cycle between the two subsequent cell divisions is called interphase, and consists of the following phase G 1 phase, during which a cell grows and decides whether to divide or not.ĭuring mitosis one cell divides once to form two identical cells. Mitosis is a part of cell division during which the nucleus of a cell is divided into two daughter nuclei having an identical number of chromosomes. Meiosis, on the other side, will create copies that have the same number of chromosomes in humans (in all generations). If the genes are not regulated properly, it might cause serious health issues in humans, such as cancer. Mitosis is a critical process to life, and hence this is controlled by several genes.

Mitosis flip book answers