cell cycle
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The DNA is organized into structures called | chromosomes
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| riosomoes | are in bacteria and a single circular structure of DNA.
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| Cell division in these cells is very simple. They split into 2 new cells with one copy of DNA. The division is called ______________________________. | binary fission
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| humans have pairs of homologous | 23
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| how many chromosomes do we have in all | 46
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| interphase | stage 1
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| as the cell grows what dose it copy | organelles and chromosomes
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| G1 | first growth phase - cell doubles in size and doubles the number of organelles
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| S | Synthesis phase DNA is replicated during this phase
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| G2 | second growth phase Proteins are created to help the cell divide
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| mitosis | second stage
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| The _ chromatids separate. The complicated process of chromosome separation is _ mitosi_. This process makes sure each new cell receives a copy of each chromosome and is divided into 4 phases: | prophase, metaphase, anaphase, telophase
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| prophase | he nucleus condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down.
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| metaphase | the chromosomes line up across the center of the cell and attaches to the spindle fibers.
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| anaphase | the centromeres split, the chromatids separate, the cell stretches and begins to pull apart.
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| telophase | chromosomes begin to stretch out and a new nuclear membrane forms around the chromosomes
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| cytokinesis | The cell divides and produces two cells that are identical to the original cell.
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Created by:
kearly
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