AP Biology - Cell Cycle Flashcards
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6237829712 | G1 Phase | Primary growth phase of the cell | 0 | |
6237829713 | S Phase | Phase where genome is replicated | 1 | |
6237829714 | G2 Phase | Preparation made for separation of genomes; organelles replicate, chromosomes condense, microtubules assemble | 2 | |
6237829715 | Interphase | Collective name for G1, S, and G2 Phases | 3 | |
6237829716 | Mitosis (M) | Phase where microtubules pull sister chromatids apart | 4 | |
6237829717 | Cytokinesis (C) | Cytoplasm divides; forms 2 daughter cells; occurs concurrently with final phase of mitosis | 5 | |
6237829718 | Sister Chromatids | The two identical copies formed by the replication of a single chromosome, joined by centromere | 6 | |
6237829719 | Centromere | Links sister chromatids | 7 | |
6237829720 | Kinetochore | Protein disk bound to specific DNA sequence at centromere | 8 | |
6237829721 | Mitotic Phase | Includes both mitosis and cytokinesis | 9 | |
6237829722 | Mitotic Spindle | Consists of fibers made of microtubules and associated proteins | 10 | |
6237829723 | Centrosome | Subcellular region containing material that functions through the cell cycle to organize the cell's microtubules; contains MTOC; only found in animal cells | 11 | |
6237829724 | Prophase | Chromatin fibers condense into chromosomes, mitotic spindle begins to form, centromeres move away from each other | ![]() | 12 |
6237829725 | Prometaphase | Nuclear envelope fragments, Each of the two chromatids now has kinetochore, some microtubules attach to kinetochores | ![]() | 13 |
6237829726 | Metaphase | Centrosomes at opposite poles of the cell, Chromosomes convene at metaphase plate | ![]() | 14 |
6237829727 | Anaphase | Beginning when sister chromatids separate from each other and ending when a complete set of daughter chromosomes have arrived at each of the two poles of the cell | ![]() | 15 |
6237829728 | Telophase | Two daughter nuclei form in the cell, nuclear envelope forms | ![]() | 16 |
6237829729 | G1 Checkpoint | Most important checkpoint; if cell receives go-ahead signal, the the cell continues with the cell; in the absence of the go-ahead signal, cell exits the cell cycle and enter the G0 phase | 17 | |
6237829730 | M Checkpoint | Cell in mitosis receives a stop signal when any of its chromosomes are not attached to spindle fibers | 18 | |
6237891007 | Microtubule Organizing Center (MTOC) | Structure found in all eukaryotic cells; source of all microtubules | 19 |