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17 Cards in this Set
- Front
- Back
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What are the 5 phases of Mitosis
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Prophase
Prometaphase Metaphase Anaphase Telophase |
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Mitosis
What happens during prophase |
chromosomes condense and become visible
the mitotic spindle forms |
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Mitosis
What happens during Prometaphase |
The nuclear envelope breaks down
The nucleolus disappears Kinetochore microtubules from the mitotic spindle attaches to one of the sister chromatids of each chromosome |
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Mitosis
What happens during Metaphase |
The formation of the mitotic spindle is completed
each chromosome is pulled in opposite directions, causing them to line up in the middle of the cell at a place called the metaphase plate |
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Mitosis
What happens during Anaphase |
the centomeres split and the sister chromatids are pulled towards opposite ends of the cell
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Mitosis
What happens during Telophase |
A new nuclear envelope begins to form
The mitotic spindle disintegrates the chromosomes begin to decondense |
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What are five phases of meiosis 1
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Early prophase 1
Late prophase 1 Metaphase 1 Anaphase 1 Telophase 1 |
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Meiosis 1
What happens during early prophase 1 |
The homolog pairs come together in a process called synapsis and form a tetrad
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Meiosis 1
What happens during late prophase 1 |
Crossing over between homologous non-sister chromatids occurs where chiasmata are formed
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Meiosis 1
What happens during Metaphase 1 |
The tetrads line up at the mertaphase plate
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Meiosis 1
What happens during Anaphase 1 |
The paired homologs separate and begin to migrate to opposite ends of the cell
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Meiosis 1
What happens during telophase 1 |
The homologs finish migrating to the poles of the cell, the cell divides in the process of cytokinesis
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What are the four steps of Meiosis 2
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Prophase 2
Metaphase 2 Anaphase 2 Telophase 2 |
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Meiosis 2
What happens during Prophase 2 |
The spindle apparatus forms and one spindle fiber attaches to each sister chromatid
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Meiosis 2
What happens during metaphase 2 |
Replicated chromosomes line up at the metaphase plate
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Meiosis 2
What happens during anapahse 2 |
Sister chromatids separate. The resulting chromosomes begin moving to opposite sides of the cell
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Meiosis 2
What happens during telophase 2 |
Chromosome arrive at opposite sides of the cell. A nuclear envelope forms around each haploid set of chromosomes, and each cell undergoes cytokinesis
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