The Cell Cycle (p. 96-97)
A series of events that takes place from one cell division to the next.
Oncologist (p. 97)
Doctors who diagnose, study, and treat cancers.
Interphase (p. 97)
The stage of the cell cycle that makes up most of the life of a (eukaryotic) cell, including growth, development, and DNA copying.
Mitosis (p. 98-99)
The processes in which the nucleus divides to form two identical nuclei. There are 4 main steps: prophase, metaphase, anaphase, and telophase.
Cytokinesis (p. 99-100)
During this period of time the cytoplasm with organelles evenly distributed divides and 2 identical daughter cells are formed.
Mass of genetic material composed of DNA and proteins that condense to form chromosomes. Located in the cell's nucleus.
Chromosome (p. 98)
A structure in the nucleus that contains the hereditary material (DNA).
Chromatid (p. 98)
One of the two identical DNA strands found in a duplicated chromosome.
Centromere (p. 98)
The structure that holds the two chromatids together in a duplicated chromosome.
Centrioles (p. 98)
They appear during prophase and help organize the spindle fibers which begin to stretch across the cell.
Spindle Fibers (p. 98)
They help move the chromosomes during mitosis (they attach to the centromeres and move each chromosome to an opposite end of the cell).
Asexual Reproduction (p. 101)
A process in which a new organism (sometimes more than one) is produced from one organism. It has hereditary material that is identical to the parent organism.
Budding (p. 102)
A type of asexual reproduction in which a new organism grows from the body of the parent organism. Ex: Hydra.
Regeneration (p. 102)
A type of (asexual) reproduction that uses mitosis and cell division to re-grow new body parts. Ex: starfish regenerate missing arms.