Compact structure of tightly coiled DNA that forms prior to mitosis.
Chromatin - A thin thread-like complex of DNA and proteins found in the nucleus of a nondividing cell.
Karyotype - Display of chromosomes found in an individual's cells arranged in order of size and shape
Diploid - Describes cells that have two sets of chromosomes.
Haploid - Describes cells that have one set of chromosomes.
Sex Chromosomes - Either member of a pair of chromosomes responsible for sex determination.
Binary Fission - Describes the way bacteria reproduce their circular DNA and divide the cell. A form of asexual reproduction for bacteria.
Mitosis - A nuclear division that involves copying and separating chromosomes into two nuclei
Cytokinesis - Division of the cytoplasm following mitosis.
Cell Cycle - 5-phase sequence of eukaryotic cell growth and division.
Tumor - Formation of a mass of cells as a result of abnormally rapid cell division.
Cancer - A condition in which normal restraints on cell reproduction break down, resulting in rapid uncontrolled cell division.
Mutation - Abrupt change in the genetic makeup of an individual.
Gamete - A haploid reproductive cell, such as an egg or sperm cell.
Meiosis - A form of cell division that reduces the number of chromosomes in a cell by half.
Crossing Over - Exchange of genetic material between paired homologous chromosomes during prophase I of meiosis.
Homologous chromosomes - Chromosomes that carry the same traits in the same order but may have different codes for the same traits.