Pre-AP Biology Cell Division
Cell Division and Cancer
Terms in this set (40)
threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
A cell that has only one representative of each chromosome pair
A cell containing two sets of chromosomes (2n), one set inherited from each parent.
a period between two mitotic or meiotic divisions during which the cell grows, copies its DNA, and prepares for cell division.
first and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus
second phase of mitosis, during which the chromosomes line up across the center of the cell
the third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles
last phase of mitosis, chromosome are in two new cells and nuclear membranes start to reform
cell division in which the nucleus divides into nuclei containing the same number of chromosomes
type of cell division that produces four cells, each with half as many chromosomes as the parent cell
The first phase of meiosis I. During prophase I the replicated chromosomes condense, homologous chromosomes pair up, crossing over occurs between homologous chromosomes, the spindle is formed, and the nuclear envelope breaks apart into vesicles.
The second phase of meiosis I. During metaphase I the paired homologous chromosomes (tetrads) align at the center of the cell
The third phase of meiosis I. the replicated homologous chromosomes are separated (the tetrad is split) and pulled to opposite sides of the cell.
The fourth of meiosis I. Telophase I is identical to mitotic telophase, except that the number of chromosomes is now reduced by half. After this phase the cell is considered to be haploid.
The first phase of meiosis II. Prophase II is identical to mitotic prophase, except that the number of chromosomes was reduced by half during meiosis I.
The second phase of meiosis II. Metaphase II is identical to mitotic metaphase, except that the number of chromosomes was reduced by half during meiosis I.
The third phase of meiosis II. During anaphase II the sister chromatids are finally separated at their centromeres and puled to opposite sides of the cell.
The fourth and final phase of meiosis II. Telophase II is identical to mitotic telophase, except that the number of chromosomes was reduced by half during meiosis I.
division of the cytoplasm during cell division
one of two identical "sister" parts of a duplicated chromosome
long strands of DNA found in the eukaryotic cell nucleus; condense to form chromosomes
area where the chromatids of a chromosome are attached
structure in an animal cell that helps to organize cell division
one of a matching pair of chromosomes, one inherited from each parent
a tumor that is not cancerous
mass of abnormal cells resulting from uncontrolled cancer cell division
uncontrolled cell division
one strand of a double-stranded chromosome
Mitosis occurs in all but these cells
Skin, Bone Cells
example of Diploid Cells in your body
Sperm and Egg
Example of haploid cells in your body
process in which homologous chromosomes exchange portions of their DNA during meiosis
Where the homologous chromosomes pair up.
new combination of genetic information in a gamete as a result of crossing over during prophase I of meiosis
stage of interphase in which cell grows and performs its normal functions
Stage of interphase in which the cell prepares for division.
series of events that cells go through from "birth" to reproduction.
Chromosomes randomly move to opposite poles of the cell.
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