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Dillon - Cell Cycle

TermDefinition
centromere a region of the condensed chromosome that looks pinched
chromosome one long continuous thread of DNA that consists of numerous genes along with regulatory information
cancer the common name for a class of diseases characterized by uncontrolled cell division
apoptosis a programmed cell death; it occurs when internal or external signals activate genes that help produce self-destruction enzymes
stem cells unique types of body cells that have the ability to divide and renew themselves for long periods of time
metaphase the spindle fibers attach to a protein structure on the centromere of each chromosome and align the chromosome along the cell equator, around the MIDDLE of the cell
prophase chromatin condenses into tightly coiled chromosomes
carcinogen includes tobacco smoke and certain air pollutants which are both associated with lung cancer
telomere protective "caps" on the ends of each strand of DNA that protect the chromosomes
chromatid half of a duplicated chromosome
cell cycle the regular pattern of growth, DNA replication, and cell division that occurs in eukaryotic cells
chromatin the loose combination of DNA and proteins
telophase a complete set of identical chromosomes positioned at each pole (end) of the cell
anaphase sister chromatids separate from each other; the spindle fibers begin to shorten, which pulls the sister chromatids AWAY from each other and toward opposite sides of the cell
cytokinesis the process that divides the cell's cytoplasm
mitosis the division of the cell nucleus and its contents
binary fission the asexual reproduction of a single-celled organism by division into two roughly equal parts
metastasize cells break away from cancer cell; spreads to other parts of the body
benign (tumor) not malignant (or cancerous); does not invade tissues or spread to other parts of the body
malignant (tumor) cancerous tumor; invades surrounding tissues and may spread to other parts of the body
asexual reproduction the creation of offspring from a single parent and does not involve the joining of gametes (sex cells - egg & sperm)
Created by: ortht