We started off class by going over the venn diagram we had to do for homework last night. We said that the main differences between mitosis and meiosis are that mitosis, are that mitosis has 8 steps and meiosis has 15 steps. We said that mitosis ends with 100% chromosome and meiosis ends with50% of chromosomes. We also said that meoisis creates haploid cells, which include polland, sperm, and egg. And mitosis creates diploid cells such as skin. We said meioiss has 2 divisions and mitosis has 1 division.Another difference is that metaphase has 1 homologus pairs line up in the middle and anaphase is 1 homologus pairs seperated. And the metaphase in mitosis lines chromosomes up on middle. And anaphase rips the chromosome apart. We siad that meiosis has a proccess called crossing over which occurs between homologus pairs. this doesn't happen in meiosis because the chromosomes get pulled apart in mitosis. We said that each chromosomes gives DNA to eachother ending up with 50% each so this means that all sperm cells are never the same. Mr. Finley asked us a question which was how come we don't look exactly like our siblings. The answer is that each cells are arranged differently so one sibling might have blue eyes and the other might hhave brown eyes. We also came up with simularities which are that they both start of with 100% chromosomes and they share some of the same stages. We also said that metaphase 2 for meiosis is simular to mitosis metaphase.
Jake P
Jake P
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