Cheat sheet: Meiosis and mitosis

1 Oct

Mitosis occurs so that dying cells can refresh life by dividing– allowing living things to grow and to stay alive.  Chromosomes are duplicated just before the cell splits.

Meiosis occurs so that sperm and egg cells each contain 23 chromosomes– instead of the 46 that show up everywhere else in the body.

Double click the photos to blow them up.

Read other “cheat sheet” index cards covering the basics of genetics.


2 Responses to “Cheat sheet: Meiosis and mitosis”


  1. How am I different from my dog? « Genetics & Parenthood - June 9, 2011

    […] like chromosomes from like species now brings different chromosomes together so that in the next meiosis, chromosome 1 from species 1 could swap chunks with chromosome 2 from species […]

  2. The biological big bang « Genetics & Parenthood - June 9, 2011

    […] Mitosis is the spark of life that starts from conception, or the merging of egg and sperm.  It is the most fundamental way in which we grow in our bodies, and the materials of mitosis come from, initially, the mother. […]

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