Mitosis 2
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- Late Prophase which is also called prometaphase the mitotic spindle begins to take in and organize the chromosomes. The chromosomes become even more compact during late prophase. The nuclear envelope breaks down releasing chromosomes and the mitotic spindle grows more and some of the microtubes capture chromosomes.
- G2 Phase is the final phase during interphase. G2 Phase happens after the DNA has been replicated. In this phase the cells begin to grow by creating more cytoplasm. Many important organelles are replicated in this stage. The G2Phase continues until the cell enters mitosis or meiosis. After cell divisionis complete the cell cycle will start again at G1.
- In Metaphase the spindle has all the chromosomes and lined them up at the middle of the cell. All the chromosomes align at the metaphase plate and the two kinetochores of each chromosome should be attached to microtubules from opposite spindle poles.
- During early prophase the cells began to break down some things and build up others causing the cell to set up for division of the chromosomes. When the chromosomes start to condense the miotic spindle begins to form. The spindle is a structure that is made of microtubules and strong fiber that are part of the cell’s skeleton and its job is to organize the chromosomes and move them around during mitosis.
- Cytokinesis- In animal cells the membrane is attracted inward until the cytoplasm is pinched into two parts. However, in plant cells the membrane is not flexible enough for this to happen because of the rigid cell wall that surrounds the cell. In plant cells the plate forms to divide the cell and then it starts to become a new cell wall
- -During anaphase the sister chromatids separate from each other and are pulled towards opposite ends of the cell. The protein glue is then broken down causing the sister chromatids to split. After they are separated each chromosome of each pair is pulled into opposite ends of the cell. The microtubules that are not attached to the chromosomes start up and push apart causing the poles to separate and making the cell larger.
- In the telophase stage the cell is almost done dividing and the cell starts to re- establish it normal structure as cytokinesis happens. The mitotic spindle is then broken down into building blocks. Two new nuclei are formed for this, and the nuclear membranes and nucleoli reappear, and the chromosomes go back to their stringy form
- The roles of chromosomes are made up of DNA and carry’s out all information for the cell and it's functions. Chromatids is one half of an identical chromosomes. Centrioles is the structure animal cells that helps the cell when it is time to divide in the cell, helps in the formation of spindle fibers and moves towards the polls when it is time for cell division. Centromeres joins two sister chromatids that are in the structure in animal cells that helped organize for cell division. Spindle Fibers forms a protein structure that divide the genetic material in the cell. The nucleus role is to store the cell’s DNA and control the activities that takes place in the cell. The main function of the cell membrane is to control what goes in and out of the cell
- Finally, here we are at the end of the journey which are two identical daughter cells. I HOPE YOU HAD AN WONDERFUL TIME!
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