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Copyright © McGraw-Hill Education. Permission required for reproduction or display.
Animal Cellat Interphase
Plant Cellat Interphase
Early ProphaseCentrosomes have duplicated.Chromatin is condensing into chromosomes, and the nuclear
envelope is fragmenting.
ProphaseNucleolus has disappeared, and
duplicated chromosomes are visible. Centrosomes begin moving apart,
and spindle is in process of forming.
PrometaphaseThe kinetochore of each chromatid is
attached to a kinetochore spindle fiber.Polar spindle fibers stretch from each
spindle pole and overlap.
nuclear envelopefragments
chromatincondenses
nucleolusdisappears
spindle fibersforming
duplicated chromosome
centromere
spindlepole
aster
kinetochore
kinetochorespindle fiber
polar spindle fiber
chromosomes cell wall
centrosomehas centrioles
centrosomelacks centrioles
spindle pole lackscentrioles and aster
MIT
OS
IS
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MetaphaseCentromeres of duplicated chromosomesare aligned at the metaphase plate (centerof fully formed spindle). Kinetochore spindle
fibers attached to the sister chromatidscome from opposite spindle poles.
AnaphaseSister chromatids part and become daughterchromosomes that move toward the spindle
poles. In this way, each pole receives the samenumber and kinds of chromosomes as the parent cell.
Telophase Daughter cells are forming as nuclear envelopes and
nucleoli reappear. Chromosomes will become indistinct chromatin.
daughter chromosome
spindle fibers cell plate
chromosomes atmetaphase plate
kinetochore spindle fiber
nucleolus
cleavage furrow
250× 250× 250×
900× 900× 900×
angela_fitzpatrickTypewritten TextPhoto credits: animal cells (early prophase, prophase, metaphase, anaphase, telophase) © Ed Reschke; (prometaphase) © Michael Abbey/Science Source; plant cells (early prophase, prometaphase) © Ed Reschke; (prophase, metaphase, anaphase, telophase) © Kent Wood/Science Source