mitosis description

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Last updated 2:54 AM on 9/25/26
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20 Terms

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<p>1.) early prophase</p>

1.) early prophase

chromatin condenses to chromosomes, nucleolus disappears, mitotic spindle forms, centrioles/centrosome separate

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<p>2.) middle prophase </p>

2.) middle prophase

nuclear envelope begins to disintegrate, spindle kinetochore microtubules/spindles attach to chromosomes

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<p>3.) late prophase </p>

3.) late prophase

nuclear envelope disintegrates, spindle kinetochore microtubules attach to chromosomes, spindle kinetochore microtubules guide chromosomes towards equator

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<p>4.) metaphase </p>

4.) metaphase

chromosomes line up at metaphase plate, kinetochore fibers

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<p>5.) early anaphase </p>

5.) early anaphase

sister chromatids separate and move towards opposite poles

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<p>6.) late anaphase </p>

6.) late anaphase

spindle kinetochore microtubules shorten. spindle poles separate, moving in opposite directions. cytokinesis begins, forming cleavage furrow

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<p>7.) telophase </p>

7.) telophase

chromosomes decondense into chromatin. mitotic spindle breaks down, nuclear envelope reforms. cytokinesis continues with cleavage furrow, producing 2 genetically identical daughter cells

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<p>8.) interphase (not a stage of mitosis!) </p>

8.) interphase (not a stage of mitosis!)

cell undergoes normal growth, DNA replicates, centrioles replicate, cell prepares for next mitosis

<p>cell undergoes normal growth, DNA replicates, centrioles replicate, cell prepares for next mitosis</p>
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what is the function of centromere?

holds sister chromatids together until separated during anaphase

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what is the function of chromatid?

carries and organizes genetic DNA

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what is the function of polar fibers?

push the spindle poles apart & elongate the cell

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what is the point of aster?

helps position & anchor the mitotic spindle apparatus

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what is the function of chromatin threads?

they package and store DNA safely

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what is the function of centrioles?

direct formation of mitotic spindle

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what is the function of chromosomes?

contains genetic material, DNA

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what is the function of cytoplasm/cytosol

holds the organelles

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what is the function of nucleolus

assembly site for proteins & ribosomal particles

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what is the function of nucleus?

control center of the cell, stores & protects DNA

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what is the function of cell membrane?

protective barrier for cell, selective permeability

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what is the function of kinetochore fibers?

attach chromosomes to the mitotic spindle