Explain how chromosomes, sister chromatids, and chromatin are related.
Chromosomes are made up of two sister chromatids, and the sister chromatids are made up of chromatin.
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5
DNA synthesis occurs
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10
Zygotes are considered to be ____________________.
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seesaw
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rocket
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banana
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20
Spindle Fibers are made from _________________.
centrioles/centrosomes
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25
State two of the three factors that influence cell size and explain how both influence cell size.
DNA - if cells too large, too hard to keep up with protein demands. SA/V - too big for cell to transport materials fast enough. Diff. -effective over short dist
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25
Describe interphase and the main events that take place during each of the 3 stages of interphase.
Interphase = preparing to divide. G1; organelles copied, cell grows. S - DNA copied. G2; final check over/growth
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5
Nuclear division occurs
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5
Cell growth occurs during ______________.
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20
Define cell division. What is the overall result of cell division?
Cell division is the process by which two daughter cells are formed from one original cell. The result is two genetically identical cells.
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10
Chromosomes duplicate during ___________________ of interphase.
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fairy
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thief
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banana
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rocket
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fairy
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thief
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5
Chromosomes are distributed equally to daughter cells