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. In which stage of the eukaryotic cell cycle does the genetic material replicate itself?
- during the M phase
- during the G2 phase
- during interphase
- during the G1 phase
- during the S phase
Eukaryotic cell cycle:- The cell cycle is an ordered series of events involving cell growth and cell division that produces two new daughter cells via mitosis.
- The length of the cell cycle is highly variable even within the cells of an individual organism.
- The length of cell cycle is approximately 24 hours.
- The cell cycle has two major phases, interphase and the mitotic phase.
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- S. Chromosomes are duplicated during what stage of the cell cycle? G1 phase S phase prophase prometaphaseFigure 28.11 depicts the eukaryotic cell cycle. Many cell types “exit� the cell cycle and don’t divide for prolonged periods, a state termedG0; some, for example neurons, never divide again. a. In what stage of the cell cycle do you suppose a cell might be when it exits the cell cycle and enters G0? b. The cell cycle is controlled by checkpoints, cyclins, and CDKs. Describe how biochemical events involving cyclins and CDKs might control passage of a dividing cell through the cell cycle.When considering the stages of the cell cycle, which stage is best associated with cells that do not divide, such as nerve cells? G1 phase M phase O None - all cells divide S phase G2 phase GO phase Pickles are often preserved in a 20-30% salt solution called brine. How does brine prevent contamination by microorganisms? Bacteria can't survive in hypotonic solutions because of the added pressure of the water they take in causing them to burst. O Bacteria can't survive in a hypertonic solution because they lose too much water and die. O The high salt concentration increases the pH of the environment, making it unfavorable for bacteria to live there. The high salt concentration creates an isotonic environment that the bacteria cannot live in. Bacteria cells are unable to digest the salt, thus killing the cells by starvation.
- . In which stage of the eukaryotic cell cycle do chromosomes leave the nucleus and enter the cytosol? during the G1 phase during the M phase during the G2 phase during the S phase all of the aboveWhich of the following statements about the cell cycle is FALSE? O Proteins are formed through all subphases of interphase The cell's DNA replicates during Gap1 O A cell can remain in Gap1 indefinitely O It consists of the mitotic phase and interphase Replicated euchromatin is present in the cell during Gap 2v Part A Match the description with the stage of the cell cycle. Reset Help Centrioles move to opposite ends of the cell DNA condenses to form chromosomes Chromosomes line up in the middle of the cell Chromosomes Split and Move to opposite ends of the cell Cell begins to split into two DNA replicates Interphase Prophase Metaphase Anaphase Telophase UnitConversionSE.pdf Type here to search 99+ RB (1
- The checkpoint permits cell entry into mitosis only if all DNA is replicated.* Start APC/C G2/M G1/S A hydrogen atom is sometimes referred to as a proton because O It is positively charged It is negatively charged It has just one proton It has just one electron How many chromosomes are in a human sex cell right after meiosis I? * O 46 O 23 92 4 Which protein family is responsible for facilitating the process of programmed cell death that is activated in cells with significant DNA damage? * O Separase OCaspase Cdk-cyclin OShugoshin O O O O O O O ONormal Cell Cycle Describe the cell cycle using the following words: 1. Interphase 2. G1 1 3. G2 4. S phase 5. Mphase (mitosis) 6. Prophase 7. Metaphase 8. Anaphase 9. Telophase 10. Cytokinesis 11. Apoptosis 12. Check Points feedbackDuring the S component of the cell cycle: the cells divide monad DNA is converted to dyad DNA the chromosomes form cytokinesis occurs nothing happens
- During cell cycle, interphase takes- O More than 20 hours Less than 20 hours O More than 10 hours O 20 hoursDuring which of the following phases of the cell cycle will chromatins be found containing two chromatids? M G1 G0 G2 all of the aboveDuring which phase of the cell cycle is DNA replicated? O G1 phase O G2 phase O S phase O M phase
