Cell division - Edexcel The stages of mitosis in detail
Mitosis is a type of cell division which produces two identical diploid daughter cells. Cancerous tumours are either malignant or benign. Specialised cells are formed when stem cells differentiate.
mitosisA type of cell division which produces daughter cells identical to the parent. is a type of cell division in which a diploid body cell copies itself and finally divides into two identical diploid daughter cellsCells formed from the division of a cell.. The daughter cells are cloneAn organism that is genetically identical to another organism. of each other. Every base pair of their DNADeoxyribonucleic acid. The material inside the nucleus of cells, carrying the genetic information of a living being. is identical.
The stages of the cell cycle are:
Stage
What happens
Interphase
The cell spends most of its life in this phase. The DNA in chromosomes copies itself ready for mitosis.
Prophase
The DNA in chromosomes and their copies condenses to become more visible. The membrane around the nucleus disappears.
Metaphase
Chromosomes and their copies line up in the middle of the cell.
Anaphase
Chromosomes and their copies are pulled to different ends of the cell.
Telophase
New membranes form around the chromosomes at each end of the cell.
Cytokinesis
The cell membrane pinches in and eventually divides into two daughter cells.
Stage
Interphase
What happens
The cell spends most of its life in this phase. The DNA in chromosomes copies itself ready for mitosis.
Stage
Prophase
What happens
The DNA in chromosomes and their copies condenses to become more visible. The membrane around the nucleus disappears.
Stage
Metaphase
What happens
Chromosomes and their copies line up in the middle of the cell.
Stage
Anaphase
What happens
Chromosomes and their copies are pulled to different ends of the cell.
Stage
Telophase
What happens
New membranes form around the chromosomes at each end of the cell.
Stage
Cytokinesis
What happens
The cell membrane pinches in and eventually divides into two daughter cells.
The stages of mitosis are: prophase, metaphase, anaphase and telophase.
Only two pairs of chromosomeThe structure made of DNA that codes for all the characteristics of an organism. are shown in the diagrams below. There are 23 pairs of chromosomes in a diploid human body cell.