Meiosis in Motion

 

Meiosis is the division of sex cells. This process reduces the number of chromosomes from a diploid to a haploid. This occurs in meiosis I and meiosis II. In prophase I, the first step and meiosis I, the chromosomes condense and the centrosome moves creating spindle formation. The homologous chromosomes crossover. In metaphase I the chromosomes move to the center at the metaphase plate and the spindle fibers lengthen. Anaphase I is where the chromosomes separate because the spindle fibers at the poles are shortening. The chromosomes are pulled towards opposite poll. The last part of meiosis I is telophase and cytokinesis I where the new membranes are formed and the cells separate to form two haploid cells. In meiosis II, prophase II is the first step. In both cells the spindle forms and the chromosomes, made of two chromatids, move towards the center. In metaphase II the spindle fibers are lengthening and the chromosomes are in the middle at the metaphase plate. Next in anaphase II the spindle fibers begin to shorten and the chromatids move towards opposite poles in both cells. Lastly in telophase and cytokinesis II the two cells form haploid daughter cells leaving a total of four cells.

For my project I used keynote. In keynote I used the shapes to form the cells and animated them to make them move. It was a great way to help me not only learn meiosis, but also visualize it. The fluidity helped because it made it easier to comprehend.