Cytokine sis and Mitosis Reflection
In class we worked on two labs. These labs were suppose to teach us more about cell division. In out first lab i learned about all the stages of cell division. The first part of cell division is interphase. That is when the chromosomes and the DNA double themselves within one cell. The next stage is prophase.In prophase the chromosomes start moving. The next stage is metaphase. In this stage the chromosomes all align in the center of the nucleus, getting ready for the next stage. Then there is annaphase, the chromosomes move to opposite poles of the cell. In the last stage, telophase the new membrane starts being created around the duaghter nucleii, preparing for cell division. Even though the process is very complex cells may not take very much time to duplicate and probably spend most of the time in interphase.
In my second lab, i learned to tell apart the nucleus of a dividing and non-dividing cell. I looked at the time of an onion root. When you looked for a non-dividing cell it was just pure purple. And in a dividing cell you notice little dots which are the chromosomes on the onion tip root. I also found it interesting that plants are mainly used in experiments like these because there are constantly growing and going through cell division.
I also learned that there is one difference between mitosis and meiosis which is that meiosis is a cell division between sex cells.During that process 4 daughter cells are created since there are two nuclear divisions.
Great work Cassie! I love the explanation of how you could tell the difference between the non-dividing nucleus and the dividing. It's true, they do get little dots in them from the chromatin organizing into chromosomes. Well organized thoughts here.
ReplyDelete