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Chapter 8 Section 2
Section 2 Cell Division
13
Biology
10th Grade
02/25/2010

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Term
binary fission
Definition
a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size
Term
mitosis
Definition
in eukaryotic cells, a process of cell division that forms two nuclei, each of which has the same number of chromosomes
Term
asexual reproduction
Definition
reproduction that does not involve the union of gametes and in which a single parent produces offspring that are genetically indentical to the parent
Term
meiosis
Definition
a process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells
Term
gamete
Definition
a hapliod reproductive cell that unites with another hapliod reproductive cell to form a zygote
Term
interphase
Definition
a period between two mitotic or meitotic divisions during which the cell grows, copies its DNA, and synthesizes proteins
Term
cytokinesis
Definition
the division of the cytoplasma of a cell
Term
prophase
Definition
the first stage of mitosis and meiosis in cell division
Term
spindle fiber
Definition
one of the microtubules that extend across a dividing eukaryotic cell
Term
metaphase
Definition
one of the stages of mitosis and meiosis, during which all of the chromosomes move to the cell's equator
Term
anaphase
Definition
a phase of mitosis and meiosis in which the chromosomes separate
Term
telophase
Definition
the final stage of mitosis or meiosis, during which a nuclear membrane forms around each set of new chromosomes
Term
cell plate
Definition
the precursor of a new plant cell wall that forms during cell division and divides a cell into two
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