Ahmad Dweik
Question/Problem
Which phase of cell division / mitosis is seen most often in whitefish blastula?
Introduction
Cell division is the process of a parent cell dividing into two daughter cells. Mitosis is a type of cell division. In mitosis a parent cells chromosomes are copied and separated into two cells with different nucleuses but same DNA. There are steps or phases that take place that make the cell divide. The first phase is called Interphase. In interphase there are sub groups such as gap 1, 2 and synthesis, also known as S. In gap 1 protein synthesis occurs and the cell grows and may double in size. In S stage DNA of the parent cells are copied, and the long loose fibers are called chromatin. Basically in …show more content…
The next phase in mitosis is Prophase. In this stage the nuclear membrane and nucleoli disappear. Also the loose chromatins tighten up and attach at a point called the centromere and form chromosomes. Also the spindles start to form. After Prophase comes metaphase. In this stage the tightly coiled chromosomes align up at the center of the cell called metaphase plate. The next step, anaphase, is when the chromosomes separate into chromatids by the pulling of the spindle fibers to each of the opposite sides of the cell. The final stage, telophase then begins. In telophase, the cell starts to pinch and the chromosomes uncoil into chromatin. Also the spindles disappear and the nuclear membranes reappear. After all these phases the two daughter cells form, and have the same DNA, and are now ready to undergo interphase again. All these phases occur every time a cell divides, but which one occurs more often? In my opinion I think interphase is the most common, because every cell needs DNA and interphase must happen or