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Biology - Cell Division, Cancer, Meiosis
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ASEXUAL REPRODUCTION
________: In single- celled organisms, mitosis is a way to reproduce.
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Tumours
________ are mass of cancer cells that grow and divide.
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Centrioles
________ used to move the chromosomes, migrate towards opposite ends of the cell " (the poles)
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DNA
Sometimes ________ can mutate leading to uncontrolled cell growth (cancer)
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Centromere
________- used to hold together the chromatids.
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Plants
________ undergo a slightly different process, building up a new cell wall between the two halves of the nearly divided cell.
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Humans
________ start with one cell and then cells divide at a rapid pace during pregnancy and continue after birth.
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Simple fibres
________ begin to retract.
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Nuclear membrane
________ begins to dissolve.
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Genetic material
________ begins to re- condense.
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Single fibres
________ connect to the centromeres of chromosomes.
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Chromatids
________ reach the opposite pole.
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number of chromosomes doesnt
The ________ determine the complexity.
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process of mitosis
The ________ produces identical copies of the parent cell, but sometimes an identical copy is not desirable.
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Different organisms
________ have different amounts.
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Cell membrane
________ begins to pinch and form two cells.
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Cells
________ can not simply grow in size; the distance of the nucleus from all parts of the cytoplasm must be kept small for efficient communication.
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Gametic cells
________ must be haploid; thats to say, they must have half the number of chromosomes as somatic cells.
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Cancer cells
________ divide at a faster rate than normal cells.
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nuclear membrane
A(n) ________ begins to form around each set of chromatids.