BSC 2010 - Test Review _2 (Alee's Part) - Student CopyFall2009

BSC 2010 - Test Review _2 (Alee's Part) - Student CopyFall2009

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SI BSC 2010 Fall 2009 Test #2 BSC 2010 – Integrated Principles of Biology Supplemental Instruction Review Session for Test #2 Chapter 12: The Cell Cycle The Cell Cycle _________________________: the first growth phase of the cell cycle, consisting of the portion of interphase before DNA synthesis _________________________: the synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated _________________________: the second growth phase of the cell cycle, consisting of the portion of interphase after DNA synthesis occurs _________________________: consists of cytokinesis and mitosis; changes to the cell are most visible during mitosis Regulation - _________________ throughout the cell cycle stop mutants from continuing on in the cell cycle. This is good because it stops mutants from replicating! - Most important checkpoint is G 1 o If appropriate signal received, cell will usually complete cell division o If no signal, then cell enters non- dividing G 0 phase - Additional regulatory checkpoints o G 2 checkpoint - Cell will not enter mitosis unless DNA synthesis completed o M-checkpoint - Cell will not enter anaphase until chromosomes lined up on metaphase plate - Signal transduction pathways and kinase (phosphorylation) - cascades are central o _______________________________________ ______________________________________: Complex interacting proteins that Looking for extra help in Biology? Come to one of the SI review sessions! Times and more information posted on the Supplemental Instruction Webpage! Page # 1
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SI BSC 2010 Fall 2009 Test #2 control the activities of other regulatory proteins and thereby the rate at which the cell progresses through the cell cycle Chromosomes – Duplicated vs. Unduplicated We have __________ copies of each chromosome. Two different states of chromatin: o ________________________________ - Always heterochromatin (e.g., centromeres) o _____________________________________ – Can become euchromatin ( The portion of genomic DNA that remains relatively unstained and is transcriptionally active) (and vice versa) Mitosis Result: ____________________________________ Looking for extra help in Biology? Come to one of the SI review sessions! Times and more information posted on the Supplemental Instruction Webpage! Page # 2
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Fall 2009 Test #2 The Mitotic Spindle Microtubules are composed of ______________________. Chapter 13: Meiosis - ____________________________________ : the complete set of chromosomes in an organisms; chromosome complement of a cell, individual, or species Looking for extra help in Biology? Come to one of the SI review sessions! Times and more information posted on the Supplemental Instruction Webpage! Page #
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This note was uploaded on 02/25/2010 for the course BSC 2010 taught by Professor Bowes during the Spring '08 term at University of Florida.

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BSC 2010 - Test Review _2 (Alee's Part) - Student CopyFall2009

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