MITOSIS Flashcards
(26 cards)
the process of cell division
mitosis
mitosis is needed for
growth and repair
46 chromosomes
somatic/diploid
23 chromosomes
gametes/haploid
the cells in the body other than sperm and egg cells
somatic cell
reproductive cell of an animal and plant cell
gametes
longest part of cell division
interphase
92 chromosomes
interphase
3 phases pf interphase
1.gap 1
2.synthesis
3.gap 2
preparation of current chromosome
gap 1
producing/replication
synthesis
growth/maturation to be prepared on the mitotic stages/phases
gap 2
mitotic stage/phases
1.prophase
2.metaphase
3.anaphase
4.telophase
5.cytokinesis
The replicated chromosomes condense (become more compact), the nuclear envelope breaks down, and the spindle fibers (made of microtubules) begin to form.
prophase
The chromosomes line up at the center of the cell (the metaphase plate) along the spindle fibers.
metaphase
The sister chromatids (identical copies of each chromosome) separate and move to opposite poles of the cell, pulled by the spindle fibers.
anaphase
The chromosomes reach the poles of the cell, the nuclear envelope reforms around each set of chromosomes, and the spindle fibers disappear.
telophase
The cytoplasm divides, completely separating the two daughter cells.
cytokinesis
consist of cell division and interphase
cell cycle
longest phase of mitosis
prophase
two identical copies of a chromosome that are joined at the centromere
sister chromatids or chromatids
a constricted region in the chromosome that holds the two sister chromatids together
centromere
responsible for pulling the chromatids towards the opposite rows
spindle fibers
they produce spindle fibers that attach to the centromere of the chromosome
centrioles
