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27 terms

Bio mitosis flashcards

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anaphase
the stage in mitosis in which individual chromosomes, after being separated from double chromosomes, move to opposite sides of the cell
bacterium
a one-celled microorganism that contains no nucleus
cell cycle
the sequence of growth and division that dividing cells go through
cell plate
structure formed in cytokinesis that divides the cytoplasm of a plant cell in half
centrioles
cylindrical strutures in animal cells from which the spindle extends from in mitosis
centromere
the structure that is the point of attachment for two chromatids in a double chromosome
chromatid
a single chromosome that is part of a double chromosome
chromosomes
structures composed of a very long strand of DNA that has been tightly compacted
chromosome set
a group of chromosomes that exist together within the nucelus of a eukaryote
cytokinesis
stage following mitosis in which the cytoplasm of a cell divides into two equal portions
cytoplasm
area within a cell between the nucleus and outer cell membrane
DNA deoxyribonucleic acid
large molecules that carry the genetic information necessary for all cellular functions
equator
midplane of the cell
eukaryotic cell
cell that has a true nucleus surrounded by a membrane
genes
segments of DNA that carry information and give directions for everthing the cell is and will be
interphase
period in the cell cycle when the cell grows, produces more cell structures, and doubles its chromosome set
metaphase
the second stage in mitosis in which the doubled chromosomes line up along the cell's equator and are split into single chromosomes
microtubules
fiber-like structures that extend from opposite sides of the cell in mitosis; form the spindle
mitosis
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
nuclear envelope
a membrane that surrounds the nucleus in a eukaryotic cell
nuclei
plural form of nucleus
nucleolus
a dark structure seen within the nucleus
nucleus
membrane bound structure; found in eukaryotes that contains the genetic material for the cell
prokaryotic cell
a cell that doesn't have a membrane bound nucleus
prophase
first and longest stage of mitosis
telophase
the last stage in mitosis
spindle
football-shaped structure formed from microtubules during prophase