Easy Explanation Notes with Examples

Mitosis and Meiosis

Both types of cell division, mitosis and meiosis have many similarities. However, there are many differences between them.




The number of divisions A cell divides only once in a cycle A cells undergoes division twice in a cycle
End result Creates two daughter nuclei at the end Creates four daughter nuclei at the end
Genetic make-up Daughter cells are genetically identical to the parent cell Daughter cells have unique genetic make-up
Number of chromosomes in daughter cells Daughter cells contain the same number of chromosomes as the parent cell (Diploid) Daughter cells contain half the number of chromosomes than the parent cell (Haploid)



Prophase, Prometaphase, Metaphase, Anaphase and Telophase Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II and Telophase II
Pairing of homologous chromosomes No Yes
Function Production of somatic cells for growth and repair Production of gametes or sex cells
Splitting of centomeres Occurs in the Anaphase of mitosis Occurs only in Anaphase II but not in Anaphase I.
Cytokinesis Yes. At the end of telophase Yes. At the end of telophase in both meiotic divisions
Place of occurrence In all cells of eukaryotes In sex cells of almost all eukaryotes
Synapsis No synapsis Synapsis of homologous chromosomes during prophase
Metaphase Plate Consists of pairs of chromosomes Consists of pairs of paired chromosomes
Appearance of nucleoli Reappear at teleophase Do not reappear at telophase I
Occurrence on the basis of type of reproduction Occurs in both sexually and asexually reproducing organisms

Occurs only in sexually reproducing organisms



Copyright © 2016 - 2018 Explainry.com | All Rights Reserved