Problem: List the major differences between mitosis and meiosis. What are some similarities between mitosis and meiosis? How is the process of crossing over beneficial to an organism? What are some disadvantages that crossing over might impart to an organism?

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Mitosis Vs Meiosis

The differences between mitosis and meiosis are the following: 

  • Mitosis occurs in somatic cells while meiosis occurs in germ cells (sex cells)
  • Mitosis has one division that consists of 4 phases while meiosis occurs in two successive cell division (meiosis I and meiosis II) which consists of 4 phases each. 
  • Prophase: Prophase in mitosis is of short duration and includes no sub stages. No pairing or synapsis takes place between the homologous chromosomes. On the other hand, the prophase of meiosis has longer duration and it completes in five successive. Pairing also takes place between homologous chromosomes.
  • Metaphase: Chromatids occurs in the form of dyads during mitosis while chromatids of the two homologous chromosomes occurs in the form of tetrads during meiosis. 
  • Anaphase: During mitosis, the chromosomes are monads and they are long and thin. While during meiosis, the chromosomes are dyads and are short and thick. 
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Problem Details

List the major differences between mitosis and meiosis. 


What are some similarities between mitosis and meiosis? 


How is the process of crossing over beneficial to an organism? 


What are some disadvantages that crossing over might impart to an organism?


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