wat is mitosis?

Question

wat is mitosis?

Answer 1

ITS A PROCESS OF CELL DIVISION

Events during Mitosis
Interphase: Cells may appear inactive during this stage, but they are quite the opposite. This is the longest period of the complete cell cycle during which DNA replicates, the centrioles divide, and proteins are actively produced. For a complete description of the events during Interphase, read about the Cell Cycle.

Prophase: During this first mitotic stage, the nucleolus fades and chromatin (replicated DNA and associated proteins) condenses into chromosomes. Each replicated chromosome comprises two chromatids, both with the same genetic information. Microtubules of the cytoskeleton, responsible for cell shape, motility and attachment to other cells during interphase, disassemble. And the building blocks of these microtubules are used to grow the mitotic spindle from the region of the centrioles.

Prometaphase: In this stage the nuclear envelope breaks down so there is no longer a recognizable nucleus. Some mitotic spindle fibers elongate from the centrioles and attach to kinetochores, protein bundles at the centromere region on the chromosomes where sister chromatids are joined. Other spindle fibers elongate but instead of attaching to chromosomes, overlap each other at the cell center.

Metaphase: Tension applied by the spindle fibers aligns all chromosomes in one plane at the center of the cell.

Anaphase: Spindle fibers shorten, the kinetochores separate, and the chromatids (daughter chromosomes) are pulled apart and begin moving to the cell poles.

Telophase: The daughter chromosomes arrive at the poles and the spindle fibers that have pulled them apart disappear.

Cytokinesis: The spindle fibers not attached to chromosomes begin breaking down until only that portion of overlap is left. It is in this region that a contractile ring cleaves the cell into two daughter cells. Microtubules then reorganize into a new cytoskeleton for the return to interphase.

Answer 2

i just learned about that last year. MITOSIS is the usual method of cell division, characterized typically by the resolving of the chromatin of the nucleus into a threadlike form, which condenses into chromosomes, each of which separates longitudinally into two parts, one part of each chromosome being retained in each of two new cells resulting from the original cell. there are 4 phases is mitosis which are PHASES OF MITOSIS First Phase is called Prophase, the DNA molecules of the chromosomes condense. The outer boundary of the cell is the faint circle just inside the box. Second Phase is called Metaphase. The chromosomes line up in the center of the cell, separate and become a pair of identical chromosomes Third Phase is called Anaphase. Each set of chromosomes moves toward the opposite end of the cell. Fourth Phase is called Telophase. Here, the spindle fibers disappear, the nuclear membrane appears and the cell divides into two daughter cells. Notice the indentation starting on the outer cell wall. Eventually these two indentations will touch and the cell will become two.

Answer 3

Mitosis is a type of cell division. There are other types of cell division, such as meiosis, which is how eggs and sperm develop. Mitosis is the process by which most of the other cells in your body develop.

For example, the outermost layer of your skin is made up of dead skin cells. These dead cells are rubbing off the surface of your skin all the time and being replaced by new cells from deeper in your skin. These new cells are formed by mitosis, or one cell splitting into two cells.

Answer 4

Mitosis is the process by which a cell separates its duplicated genome into two identical halves.

Answer 5

mitosis is one of the process in cell division whereby it can separated into four processes, that is anaphase, metaphase, prophase and telophase. Wanna know more???

Answer 6

The entire process of cell division including division of the nucleus and the cytoplasm.