Phases Of Mitosis

1152 Words 5 Pages
Summary Everything which is living is composed of different living parts called cells. Cells are the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. The human body has many different types of cells which all exist to perform different tasks and functions. Without cells all organisms would cease to exist. Like all living things, the cell must also reproduce and eventually die. Cells reproduce through a series of division called mitosis, and also through a nuclear division called meiosis which produces two separate cells that only contain half of the genes found in the mother cell. Within the body most cells use mitosis to divide and reproduce. Within the mitotic phase the cell has many different phases it must circle thought to correctly reproduce an exact copy of itself. These include prophase, metaphase, anaphase, and telophase. Mitosis is like a continuous circuit where one phase lead into another which lead into another and so on. The first of the phases is known as prophase which in itself may be broken down into two separate parts referred to as early prophase and late prophase. Early prophase begins when the chromatin located within the cell bond together in pairs of two to form barlike chromosomes. This event …show more content…
Interphase is the period of a cell’s life when it carries out normal metabolic functions, and grows. During interphase the DNA-containing material is the form of chromatin. The nuclear envelope and one or more nucleoli are intact and performing normal cellular activities. Like prophase, interphase may be broken down into multiple phases; G1, S; and G2. During G1 the centrioles begin to replicate, whereas during S DNA is replicated. Final preparations for mitosis are completed during the stage G2. Also during G2 the centrioles finish

Related Documents