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Published byMabel Craig Modified over 9 years ago
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The cell cycle includes what 2 important aspects?
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Repair/growth and reproduction
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Some organisms reproduce by simple cell division where a single cells duplicates its genetic material. What is this called?
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Asexual reproduction
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What is the offspring called when only 1 parent supplies all the genetic information?
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Clone – single cell and multi-celled organisms can reproduce this way
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2 parents genetic information is used to create a unique 3 rd organism. What is this called?
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Sexual reproduction
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What is the name of specialized sex cells?
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Gametes (sperm = male egg=female)
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Where are genes found?
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In the nucleus of a eukaryotic cell
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What is the difference between chromatin and chromatid?
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Chromatin – granules of DNA that turn into the strands of chromatid chromatid – strands of DNA or half the“X” of a chromosome
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True or false: The number of chromosomes an organism has depends on its size?
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False! Example: humans have 46 while silkworms have 54
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What holds together the 2 strands of chromatids?
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centromere
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What are the 5 phases of the cell cycle?
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I - Interphase P - Prophase M - Metaphase A - Anaphase T - Telophase
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What occurs during Interphase?
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-95% of a cell’s life is in Interphase -growth, development and repair -looks like an ordinary cell
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Prophase?
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“Property” – X marks the spot: -1 st phase of mitosis -chromosomes appear and duplicate
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Metaphase?
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“mets” line up -chromosomes move to the center of the cell -spindle fibers form and attach to centromeres
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Anaphase?
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“Ana banana split” -chromosomes are pulled apart and move to the poles of the cell
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Telophase?
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“telephone” – 2 people talking: -2 new daughter cells are formed -cell heads back into Interphase -cells are more efficient at this size to perform all functions
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What is the division of the cytoplasm called?
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cytokinesis
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What is the sequence of the cell cycle using letters?
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What is a carcinogen?
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Something that causes cancer by mutating rapidly dividing and multiplying cells
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