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utsfl:classroom:seminars:pba201h [2023/05/23 20:38] – [Pain] mmccannutsfl:classroom:seminars:pba201h [2023/12/01 09:10] (current) – [Primitive Streak & Twinning] mmccann
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       - The genetic code of the zygote is unique--distinct from those of the mother and father. For instance, a pregnant woman could be pregnant with a male child.         - The genetic code of the zygote is unique--distinct from those of the mother and father. For instance, a pregnant woman could be pregnant with a male child.  
     - Whole:      - Whole: 
-      * Some may ask what makes a single-celled zygote different from a single cell of, say, human skin. Both are living, human, diploid cells. However, one is a human //whole// while the other is a human //part//. Give each cell time, nutrition, and safety, then wait 9 months or 15 years...which one continues developing into a toddler, or a teenager? A skin cell will always remain a skin cell, while a zygote will continue human development into an embryo, fetus, newborn, toddler, etc.+      * Some may ask what makes a single-celled zygote different from a single cell of, say, human skin. Both are living, human, diploid cells. However, one is a human //whole// while the other is a human //part//. Give each cell time, nutrition, and safety, then wait 9 months or 15 years...which one continues developing into a toddler, or a teenager? A skin cell will always remain a skin cell, while a zygote will continue human development into an embryo, fetus, newborn, toddler, etc.  
 +      * //Nothing is added// to the embryo from the time of fertilization except adequate nutrition and a proper environment, which is what we need now. Since nothing essential has been added, and you’re a whole organism now, then you must have been that same whole organism at fertilization. 
     - Living:      - Living: 
       - If something is growing, isn't it alive?       - If something is growing, isn't it alive?
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   * Take the case of the flatworm.(("Flatworm," New World Encyclopedia, viewed online at http://www.newworldencyclopedia.org/entry/Flatworm on May 8, 2010.)) If a flatworm is cut in half, each half will regenerate into two separate, fully-functioning flatworms. But prior to this separation a flatworm nonetheless existed.    * Take the case of the flatworm.(("Flatworm," New World Encyclopedia, viewed online at http://www.newworldencyclopedia.org/entry/Flatworm on May 8, 2010.)) If a flatworm is cut in half, each half will regenerate into two separate, fully-functioning flatworms. But prior to this separation a flatworm nonetheless existed. 
   * Likewise, even though in rare situations one human splits into two, one human existed before that split happened, and the beginning of that one human was still at fertilization.   * Likewise, even though in rare situations one human splits into two, one human existed before that split happened, and the beginning of that one human was still at fertilization.
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 +ERI Video on this: https://www.instagram.com/reel/C0Rw2iorBaA/?utm_source=ig_web_copy_link 
  
 ==== Heartbeat ==== ==== Heartbeat ====