the cell cycle mitosis flip book jenny stafford

Information presented and the examples highlighted in the section support concepts and Learning Objectives outlined in Big Idea 3 of the AP ® Biology Curriculum Framework, as shown in the tables. Sometimes cells enter a Gap zero (G 0) phase, during which they do not actively prepare to divide the G 0 phase can be temporary until triggered by an external signal to enter G 1, or permanent, such as mature cardiac muscle cells and nerve cells. In animal cells, daughter cells are separated by an actin ring, whereas plant cells are separated by the cell plate, which will grow into a new cell wall.

(We will study the details of DNA replication in the chapter on DNA structure and function.) Following the G 2 stage of interphase, the cell begins mitosis, the process of active division by which duplicated chromosomes (chromatids) attach to spindle fibers, align themselves along the equator of the cell, and then separate from each other.įollowing mitosis, the cell undergoes cytokinesis, the splitting of the parent cell into two daughter cells, complete with a full complement of genetic material. The cell’s DNA is replicated during the S stage. During this phase, preparations are made for division that include growth, duplication of most cellular contents, and replication of DNA. Interphase represents the portion of the cell cycle between nuclear divisions. Interphase is divided into three phases: Gap 1 (G 1), DNA synthesis (S), and Gap 2 (G 2). In eukaryotes, the cell cycle consists of a long preparatory period (interphase) followed by mitosis and cytokinesis.

The cell cycle describes an orderly sequence of events that are highly regulated.

How do the chromosomes behave during the mitotic phase?.What processes occur during the three stages of interphase?.In this section, you will explore the following questions:

The cell cycle mitosis flip book jenny stafford