Briefly describe the stages of mitosis

Interphase: DNA in chromosomes replicates to have double copies of itself for mitosis. 1. Prophase: DNA in chromosomes condenses therefore becomes more visible and the nucleus membrane disappears. 2. Metaphase: Chromosomes line up in the centre (equator) of the cell bound via centrioles at their centromeres. 3. Anaphase: Chromosomes break at centromeres and sister chromatids move to opposite ends of the cell. 4. Telophase: New nuclear membranes forms around the chromosomes at each end of cell. Nucleoli (multiple nucleus) reappear and cell continues to elongate. Cytokinesis: Cell membrane pinches in causing parent cell to divide into 2 identical daughter cells.

OA

Related Biology GCSE answers

All answers ▸

Why is scarlet fever, caused by Streptococcus bacteria, more common in children than adults?


Students placed some grass cuttings in a vacuum flask and attached a carbon dioxide sensor. Why would the carbon dioxide levels increase over a period of 20 days?


How is body temperature regulated in mammals?


Explain the adaptations plants have to survive hot environments