period in the cell cycle when the cell grows, produces more cell structures, and doubles its chromosome set. This includes the G1, S, and G2 stages in the cell cycle
the first and longest stage of mitosis. In this stage the chromosomes condense, the nucleus and nucleolus disappear, and the centrioles move to opposite sides of the cell. The spindle forms and attaches to the chromosomes during this stage
the second stage of in mitosis in which the double chromosomes line up along the cells equator and are split into single chromosomes
the stage in mitosis in which individual chromosomes, after being separated into double chromosomes, move to opposite sides of the cell. Each cell receives one complete set of chromosomes.
the last stage of mitosis in which a nuclear envelope forms around each set of chromosomes located at opposite sides of the cell. A nucleolus appears in each nucleus during this stage.
stage following mitosis in which the cytoplasm of a cell divides into two equal portions, each with one nucleus
a one-celled microorganism that contains no nucleus.
the sequence of growth and division that dividing cells go through. The cycle includes interphase, mitosis, and cytokinesis.
a structure formed in cytokinesis that divides the cytoplasm of a plant cell in half. From this, two cell walls will form, one for each of the two plant cells.
cylindrical structures in animal cells from which the spindle extends from in mitosis
the structure that is the point of attachment for two chromatids in a double chromosome
a single chromosome that is a part of a double chromosome
structures composed of a very long stand of DNA that has been tightly compacted. Within this DNA lie the genes for the organism
a group of chromosomes that exist together within the nucleus of a eukaryotic cell
area within a cell between the nucleus and the outer cell membrane
deoxyribonucleic acid (DNA)
large molecules that carry the genetic information necessary for all cellular functions. This, when tightly compacted, forms chromosomes.
midplane of the cell
a cell that has a true nucleus surrounded by a membrane (or nuclear envelope). This group includes all animal and plant cells, except blue-green algae.
segments of DNA that carry information and give directions for everything the cell is and will be, and controls the cell's hereditary.
fiber-like structures that extend from opposite sides of the cell in mitosis. These form the spindle that facilitates chromosome movement.
the separation of doubled chromosomes and the division of the nucleus into two nuclei that is necessary for cell division to occur in eukaryotic cells. This includes prophase, metaphase, anaphase, and telophase.
a membrane that surrounds the nucleus in a eukaryotic cell
plural form of nucleus
a dark structure seen within the nucleus
a cell that does not have a membrane-bound nucleus. For example, a bacterium.
the football-shaped structure formed from microtubules during prophase. This extends from opposite sides of the cell and facilitates chromosome movement in mitosis.
a membrane-bound structure found in eukaryotic cells that contains the genetic material for the cell.