Saturday, February 1, 2014

2-1-14 video notes MPX STEM

While watching the meiosis video, I learned very important pieces of information that would help my partner and I's infographic. The first thing that I learned was that meiosis is what keeps humans from literally being clones of their parents. It also keeps adapting and natural selection alive. Meiosis makes sure that the DNA of both the mother and the father, as well as the other DNA in the cell, are always mixing and trading information. With out meiosis, we would stay the same forever, and never be able to adapt if we need to. Natural selection has been working since the beginning of time, all thanks to meiosis.

Another thing I learned about meiosis is that the only difference between mitosis and meiosis is that meiosis goes through the same process as mitosis, but twice. Doing this makes sure that the DNA has enough differences, to keep it from making the person have the exact same traits as their parents. The second phase of meiosis is literally putting a II after the name of the Phase. They didn't need to call it anything different because the second phase is the exact same thing as the first phase. Going through two phases to expand the possibilities of DNA combinations is what makes meiosis so fascinating.

Finally, I learned that because meiosis is practically mitosis, only twice, the outcome ends with four cells, not only two. Meiosis goes through the mitosis phases twice, and because at the end of mitosis you end up with two cells, meiosis leaves you with four. Because of this, the possibilities of variety in the cells are twice as much as mitosis, which keeps the process of natural selection and adaptability alive. There are four cells produces from meiosis, and there is always one dominant cell. This dominant cell is the only one useful, and will be the one that creates the human.

No comments:

Post a Comment