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Meiosis/ Mitosis
Key words and ideas in the Meiosis and Mitosis cycles.
11
Biology
9th Grade
03/25/2008

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Term
Order for Meiosis
Definition
Interphase I, Prophase I, Metaphase I, Anaphase I, Telophase I, Cytokenesis, Interphase II, Prophase II, Prometaphase, Metaphase II, Anaphase II, Telophase II, Cytokenesis
Term
Order for Mitosis
Definition
Interphase, Prophase, Prometaphase, Metaphase, Anaphase, Telophase, Cytokenesis
Term
Interphase
Definition
Comprised of G1, S, and G2
Term
G1
Definition
(Gap 1) interval of cell growth before the onset of DNA replication
Term
G2
Definition
(Gap 2) Second interval after DNA replication when the cell prepares for division
Term
S
Definition
(Synthesis) DNA replication is completed and there are two sister chromatids connected by a centromere
Term
Prophase
Definition
Chromosomes condense and microtubules form. The nuclear envelope begins to disappear and microtubules form.
Term
Metaphase
Definition
Microtubules attach their spindle fibers to the sister chromatids of each chromosome, and it brings the chromosomes along the equator of the cell.
Term
Anaphase
Definition
The spindle fibers pull the chromosomes apart towards opposite sides of the cell
Term
Telophase
Definition
Chromosomes begin to decondense and a new nuclear envelope is formed which ends mitosis.
Term
Cytokenesis
Definition
The splitting of the cells into two new cells after meiosis or mitosis.
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