Last Updated Sep 26, 2025

Mitosis vs miosis Simplified Revision Notes for GCSE Edexcel Biology Combined Science

Revision notes with simplified explanations to understand Mitosis vs miosis quickly and effectively.

Learn about Mitosis vs miosis for your GCSE Biology Combined Science Exam. This Revision Note includes a summary of Mitosis vs miosis for easy recall in your Biology Combined Science exam

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Mitosis vs miosis

	Mitosis	Meiosis
Where is occurs?	Happens in SOMATIC CELLS (whole body apart from ovaries/testes)	Happens in SEX ORGANS (anther• plant, ovaries and testes)
Importance?	• Growth of an organism • Repairs tissues • Cloning in bacteria • Asexual reproduction of plants	• Genetic variation within species • Reproduction
Differences	1 division Produces genetically identical daughter cells Produces diploid daughter cells	2 divisions Produces genetically unique daughter cells Produces haploid daughter cells
Similarities	• Require DNA to replicate/ more copies • Increase in number of cells • Spindle fibres occur • Both divide by same mechanism/process: Chromosomes line up along equator & spindles pull them apart to poles of cell

Sexual (meiosis)	Asexual (mitosis)
How plants & animals reproduce	How plants/ bacteria reproduce
Involves gametes from 2 parents which fuse together (fertilise) to form a zygote which develops	Needs one parent
Cell fusion involved	No cell fusion involved
Variety in offspring	Offspring are clones
Genetic diversity offspring	Genetically identical offspring

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