NAME:______PERIOD:____DATE:______
Mitosis
Directions: Fill in the blanks below with the correct term to complete each statement.
Mitosis is the process by which the ______of a cell is divided into 2 ______nuclei with the same number of ______. In body cells, or ______cells, mitosis is the process by which the number of cells is increased without changing the information contained in the ______.
During normal cell function, the DNA is in long strands inside the nucleus called ______. When the cell gets ready to divide the DNA coils and can be seen as a rod shaped structure called a ______. Once duplicated, each chromosome consists of two identical parts, each part is called a ______. A pair of identical chromatids is called ______. The point at which each pair of chromatids is attached is called a ______.
Interphase has three distinct phases, ______, ______, and ______. In ______the cell doubles size and makes new organelles. In the _____ phase the DNA replicates and in ______the cell makes specific proteins as it prepares for mitosis. Cells spend most of their life in ______.
After interphase the cell enters mitosis. There are 4 stages of mitosis. During prophase the ______coil up into ______. In ______the chromosomes line up in the center of the cell with the help of the ______. During anaphase the ______split and the chromatids are pulled to ______poles of the cell. In telophase, the chromosomes reach opposite ends and ______.
The cytoplasm divides in the final phase of the cell cycle called ______. The result is two ______that are ______to the original cell. Cell division is complete.
Directions: Identify, describe and draw a picture for each stage of mitosis.
- ______
II. ______
III. ______
IV. ______
Directions: Complete the table by checking the correct column for each statement.
Statement / Interphase / Mitosis / CytokinesisThe period of cell growth
A period of cell division
Chromosomes distributed equally to daughter cells.
DNA synthesis occurs
Cytoplasm divides
Mitochondria and other organelles are manufactured.
Directions: Answer the following questions completely.
1. What is mitosis?
2. What must a cell do before going through mitosis?
3. What is cytokinesis?
4. What part(s) of the cell cycle are considered cell division?
5. Why is it necessary for a cell's chromosomes to be distributed to its daughter cells in
such a precise manner?
6. At one time, interphase was referred to as the resting phase of the cell cycle. Why do
you think this description is no longer used?
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