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Growth, Repair, Reproduction

three functions of cell division

Nucleus

Contains the DNA of the cell

Cytoplasm

Contains the rest of the cell

Ribosome

An organelle in the cytoplasm that makes proteins by reading RNA and joining amino acids.

Nucleotide

The building block of DNA. It is made of a sugar, a phosphate and a base.

A, T, C, G

The letters of the four bases of DNA

Gene

A section of DNA that codes for a protein

RNA

Carries the code from the DNA in the nucleus to the ribosome in the cytoplasm

Cell Cycle

The sequence of events in the cell from one division to the next.

Interphase

The phase of working and growing. The cell makes copies of its organelles and its chromosomes (DNA).

Mitosis

The process that divides nuclear material in cells (DNA).

Cytokinesis

The process that divides the cytoplasm and the rest of the organelles in half. The division of the cytoplasm to form two separate daughter cells immediately after mitosis.

Prophase

The first and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus

Metaphase

second phase of mitosis, during which the chromosomes line up across the center of the cell

Anaphase

the third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles

Telophase

the final stage of mitosis, in which the chromosomes reach the opposite poles of the dividing cell and the nuclei of the daughter cells form around the two sets of chromosomes

Spindle

tiny fibers that are seen in cell division

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