CH 11 Flashcards
chromatin
Substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones
inter phase
Period of the cell cycle between cell divisions in which the cell grows
cell cycle
Series of events in which a cell grows, prepares for division, and divides to form two daughter cells
mitosis
Part of eukaryotic cell division during which the cell nucleus divides
cytokineses
Division of the cytoplasm to form two separate daughter cells
pro phase
First and longest phase of mitosis in which the genetic material inside the nucleus condenses and the chromosomes become visible
chromatid
One of two identical “sister” parts of a duplicated chromosome
centro mere
Region of a chromosome where the two sister chromatids attach
centriole
Structure in an animal cell that helps to organize cell division
metaphase
Phase of mitosis in which the chromosomes line up across the center of the cell
anaphase
Phase of mitosis in which the chromosomes separate and move to opposite ends of the cell
telophase
Phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin
cell division
Process in which a cell divides into two new daughter cells
asexual reproduction
Process of reproduction involving a single parent that results in offspring that are genetically identical to the parent
sexual reproduction
Type of reproduction in which cells from two parents unite to form the first cell of a new organism
growth factor
One of a group of external regulatory proteins that stimulate the growth and division of cells
cyclin
One of a family of proteins that regulates the cell cycle in eukaryotic cells
apoptosis
The process of programmed cell death
cancer
Disorder in which some of the body’s cells lose the ability to control growth
tumor
Mass of rapidly dividing cells that can damage surrounding tissue
chromosome
a thread-like structure composed of DNA and proteins, carrying genetic information and visible during cell division
