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12 terms

Cell Cycle and Mitosis

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Somatic Cells
all the cells in the body except the sex cells (gametes); the cells that make up tissues and organs.
Cell Cycle
the process that somatic cells go through in order to grow and reproduce.
Interphase
the longest part of a cell cycle when the cell grows and develops, replicates its DNA, and makes proteins and RNA to prepare for cell division.
Mitosis
the part of the cell cycle when the nucleus divides
Prophase
the first stage of mitosis when the cromatin condenses and can be seen.
Metaphase
the second stage of mitosis when the chromatids line up along the midline of the nucleus.
Anaphase
the third stage of mitosis when the centromeres divide and the sister chromatids seperate.
Telophase
the last phase of mitosis when new nuclear membranes are formed around each set of chromosomes.
Cytokinesis
the last part of the cell cycle when the entire cell divides.
Replicate
to make an exact copy of; for an example, chromosomes replicate in the nucleus before a cell divides.
Centromere
a structure that holds sister chromatids (pairs of replicated chromosomes) together.
Chromatin
the threadlike material made of DNA and proteins found in chromosomes (or will condense ro from chromosomes).