27 terms

The Cell Cycle

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cytokinesis
Complete separation of the 2 new cells resulting from mitosis.
mitosis
A process that takes place in the nucleus of a dividing cell, involves a series of steps, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus.
Asexual reproduction
interphase
Period of time where a cell carries on metabolism and replicates chromosomes prior to cell division
prophase
Chromatin condenses into chromosomes
metaphase
Chromosomes line up in the middle of the cell
anaphase
Sister chromatids separate
telophase
After the chromosome seperates, the cell seals off, Final Phase of Mitosis.
chromatid
Each half of the chromosome
chromosome
A doubled rod of condensed chromatin; contains DNA that carries genetic information
centromere
Area where the chromatids of a chromosome are attached
asexual reproduction
Process by which a single parent reproduces by itself
cell cycle
An ordered sequence of events in the life of a eukaryotic cell, from its origin in the division of a parent cell until its own division into two.
G1 phase
interphase stage of cell cycle where cell grow and synthesizes proteins
G2 phase
interphase stage of cell cycle where cell grows and prepares to go into mitosis phase
S phase
interphase stage of cell cycle where cell replicates DNA
Mitosis
stage of cell cycle where the cell divides
Prophase
first stage of mitosis, nuclear envelope disappears, chromosomes condense
Cytokinesis
final stage of mitosis, cells divide and move apart
Picture of prophase
DNA fist condenses and forms chromosomes
Picture of metaphase
Chromosomes line up at the equator of the cell.
Picture of anaphase
Sister chromatids get pulled apart
Picture of telophase
Two nuclei start to re-form, cleavage begins to form.
Picture of cytokinesis
The division of the cytoplasm.
Centromere
central part of chromosome, joining the two sister chromatids
Centriole
organelle the sends out spindle fibers
Spindle fiber
emerge from centrioles, attach to chromosomes to pull them apart during mitosis
Purpose of mitosis
organisms' growth, damage repair, asexual reproduction in single celled organisms
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