Know what these words mean in order to score high on tests.

Cell Cycle Definition
Cell Cycle: Definition from Answers.com The series of events involving the growth, replication, and division of a eukaryotic cell. Scroll down for videos and encyclopedia article.
Cell Cycle Definition
Cell Cycle, Dictionary.com, "the cycle of growth and asexual reproduction of a cell." Visit the web site for more.
Cell division
Cell division Wikipedia.org Good explanation of cell division; click on image to enlarge.
Cell Division Definition
Cell Division Definition, BiologyOnline.org, "The separation of one cell into two daughter cells, involving both nuclear Division (mitosis) and subsequent cytoplasmic division (cytokinesis)." Vis
Centromere
Centromere, Wikipedia.org, "A centromere is a region of DNA typically found near the middle of a chromosome where two identical sister chromatids come closest in contact." Visit the web site to le
Centromere Definition
Centromere Definition, Biology-Online.org, Centromere is "the constricted region joining the two sister chromatids that make up an X-shaped chromosome." Visit the web site to learn more.
Chromatids Definition
Chromatids Definition, Biology-Online.org, Chromatids are a part of cell division. Visit the web site to learn more.
Cleavage Furrow
Cleavage Furrow, Wikipedia.org, "In cell biology, the cleavage furrow is the indentation that begins the process of cleavage, by which animal and some algal cells undergo cytokinesis." Visit th
Cleavage furrow Definition
Cleavage furrow Definition Biology-Online.org A groove formed from the cell membrane in a dividing cell as the contractile ring tightens. Visit the web site to learn more.
Crossing over
Crossing over, Biology-Online, "A process occurring during meiosis wherein two chromosomes pair up and exchange segments of their genetic material." Visit the website for supplemental informati
Cytokinesis
Cytokinesis, Macroevolution.net, "Although it is one of the steps in the cell cycle, cytokinesis is not one of the phases of mitosis or meiosis." Visit the website for illustration and to learn mo
Cytokinesis
Cytokinesis Wikipedia.org Cytokinesis, from the greek cyto- (cell) and kinesis (motion, movement), is the process in which the cytoplasm of a single eukaryotic cell is divided to form two daught
Diploid Cell
Diploid Cell, By Batul Nafisa Baxamusa, Buzzle.com, Article with image.
G1 Phase
G1 Phase, Wikipedia.org, "The G1 phase is a period in the cell cycle during interphase, before the S phase." Visit the web site to learn more.
G1 Phase - What Does it Mean?
G1 Phase - What Does it Mean?, Definitions.net, Visit the web site for definition and images.
G1 Phase Definition
G1 Phase Definition, Dictionary.com, G1 phase is "the first growth period of the cell cycle, during interphase, in which the cell grows and cytoplasmic organelles are replicated." Visit the web s
gamete
gamete, By David Darling, The Internet Encyclopedia of Science, Brief encyclopedic description.
Gamete Definition
Gamete Definition, Biology-Online.org, Visit the web site for definition.
Gametes
Gametes, By Regina Bailey, ThoughtCo., Definition and photo.
Gametogenesis
Gametogenesis, Biology-Online.org, "(Science: biology) process leading to the production of gametes. The development and maturation of sex cells through meiosis." Visit the website to learn mor
Germ Cell Definition
Germ Cell Definition, MedicineNet.com, Germ cell is reproductive cell; read a brief description of it here.
gonad
gonad, By David Darling, The Internet Encyclopedia of Science, Brief encyclopedic description.
Gonad Definition
Gonad Definition, Biology-Online.org, "The sex organ producing gametes." Visit the web site to learn more.
Homologous chromosome
Homologous chromosome, Wikipedia.org, "Homologous chromosomes are chromosome pairs of the same length, centromere position, and staining pattern, with genes for the same characteristics at corresp
Homologous chromosome Definition
Homologous chromosome Definition, Biology-Online.org, Visit the website for definition.
Interphase Definition
Interphase Definition Answers.com n. The stage of a cell between two successive mitotic or meiotic divisions. Visit the web site to learn more.
Interphase Definition
Interphase Definition, Dictionary.com, "the period of the cell cycle during which the nucleus is not undergoing division, typically occurring between mitotic or meiotic divisions." Visit the web s
Kinetochore Definition
Kinetochore Definition, Biology-Online.org, "{A specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape. Visit the web
Meiosis
Meiosis Wikipedia.org Text and illustrations on meiosis; click on image to enlarge.
meiosis
meiosis By David Darling DavidDarling.info Encyclopedia article on meiosis, with illustration.
Meiosis
Meiosis Infoplease.com Short encyclopedia article.
Meiosis
Meiosis Scitable By Nature Education Text and small illustration explaining meiosis.
Meiosis II
Meiosis II, By Regina Bailey, ThoughtCo., "An introduction to the process of meiotic cell division focusing on meiosis II."
Metaphase plate Definition
Metaphase plate Definition, Biology-Online.org, Find out what the metaphase plate is here.
Mitosis
Mitosis Wikipedia.org Article describing cell division in eukaryotic cells; click on images to enlarge.
mitosis
mitosis By David Darling DavidDarling.info Encyclopedia article, with illustration, on mitosis.
Mitosis
Mitosis Web-books.com Excellent illustrations and explanations of the stages.
Nondisjunction
Nondisjunction Wikipedia.org Nondisjunction ("not coming apart") is the failure of chromosome pairs to separate properly during cell division. Visit the website to learn more.
Nondisjunction Explained
Nondisjunction Explained, Uploaded pykeman88, March 08, 2010, YouTube.com, Video length: 03:52.
Oogenesis
Oogenesis Wikipedia.org Article with diagrams.
Oogenesis
Oogenesis Answers.com Find a definition and supplemental information from McGraw-Hill.
Oogenesis Definition
Oogenesis Definition Lexic.us Definitions and pictures; click on thumbnail for larger version.
Polar Bodies
Polar Bodies, Wikipedia.org, "A polar body is a cell structure found inside an ovum. Both animal and plant ova possess it. It is also known as a polar cell." Visit the website for an image and
Prophase
Prophase Wikipedia.org All-text article on the first stage of mitosis.
Prophase Definition
Prophase Definition, The Free Dictionary, By Farlex, Prophase is the first stage of mitosis. Read more about it here.
Prophase Definition from Answers.com
Prophase Definition from Answers.com Visit the website for two definitions.
Sister chromatids
Sister chromatids Wikipedia.org Sister chromatids are two identical copies of a chromatin connected by a centromere. Visit the web site to learn more.
Sister chromatids Definition
Sister chromatids Definition, Biology-Online.org, "Two identical strands joined by a common centromere as a result of a chromosome that duplicated during the S phase of the cell cycle." Visit the
Spindle fiber Definition
Spindle fiber Definition, Biology-Online.org, Spindle fibers is "any of a network of filaments that collectively form a mitotic spindle (in mitosis) and meiotic spindle (in meiosis)." Visit the w