From zygote to a newborn: the miracle!

Animated Gif Children (17)Paul Andersen describes the process of mitosis. He begins by discussing the importance of the cell cycle in development, regeneration, asexual reproduction and wound healing. He differentiates between haploid and diploid cells and describes the   structure of the chromosome. He then moves through all the phases of mitosis; interphase, prophase, metaphase, anaphase,  telophase and cytokinesis.

Brilliant! Do not skip it!

Questions please!

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IES EMILIO FERRARI BLOG FROM THE BRITISH DEPARTMENT
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7 Responses to From zygote to a newborn: the miracle!

  1. Great video. Congratulations for your use of your class blog!

  2. alicia 3ºD says:

    Cristina:
    about our project on mitosis, we understand the cell cycle of a diploid cell, but we don’t understand if haploid cells can only undergo miosis or mitosis and how it works (in haploid cells) the process.
    Cecilia and Alicia

    • Hi girls,

      Diploid cells can undergo both, meoisis and mitosis. Haploid cells however, can undergo only mitosis.
      On your project, you have to represent the cell cycle of a diploid cell 2n=4 which undergoes mitosis and then the cell cycle of a haploid cell n= 4 which also undergoes mitosis.
      You might use different colours to represent the pairs of homologous chromososomes in the diploid cell although both of them must have the same shape and size (to represent that they have the same genes, but they can have different information). In a haploid cell, all the chromosomes are different (only one set of chromosomes). The process works exactly the same. Remember that in metaphase chromosomes line up at the metaphase plate (one chromosome in a spindle fibre).
      About meiosis what you have to know is that it consists of two successive divisions (meiosis I and meiosis II). The final result is four cells with half the number of chromosomes than the parent cell (not any half, but one of each of the homologous choromosomes).
      Please, feel free to keep on asking me whatever questions! I’m here to help you!

  3. 3ºD says:

    the information about interphase will enter in the exam?

  4. JorgeCSF says:

    AWESOME VIDEO!!!!!!!!!!!!

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