After cutting yourself with a knife while chopping vegetables, your body begins extensive mitosis and cell division to begin the healing process. To speed this process, your cells need to make more Cyclin Proteins to bind with extisting cylin- dependent kinase proteins. The DNA below contains the instructions to build cyclin proteins: DNA - TAC GGG CAA ACC TCT AGC CCA ATG TCG ATC Transcribe this into mRNA and translate these into amino acids, use the format below: MRNA: (insert sequence here) Amino Acids: (insert amino acids here)
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- Which of the following would be expressed at varying levels during different parts of the cell cycle? A. cyclin-dependent kinases B. RNA polymerase C. cyclins D. Glycolysis enzymesThese types of proteins are responsible for all the following events during cell division: movement of "chromosomes" to poles, sliding of non-kinetochore microtubules pushing the two ends of the cell apart, and also the production of the cleavage furrow during cytokinesis. They are called _ _ (two words)A cell begins to undergo apoptosis due to stress. Which of the following are true about this cell? (select all that apply) The cell can exit apoptosis if the stressful factor is removed The cell has high levels of p53. The cell's DNA will inevitably degrade The cell may undergo mitosis before completing apoptosis
- 1. Which organelles is the main calcium store for signaling? Lyosome; ER; Golgi; secretary vesicles 2. A temperature sensitive mutant yeast strains/stops dividing when shifted from. 25 degrees Celsius to 37 degrees Celsius. These cells are analyzed at different temperatures by a machine that measures the amount of DNA they contain. What would explain the behavior of the mutant? Anaphase promoting complex is inactivatend; s cdk is inactivated; m cdk is inactivate; m cycling is overexposed 3.which of the following statements about proto oncogenes is true? Proto oncogenes inhibit cell growth and division; cancer cells often contain loss of function mutations in proto oncogenes; proto oncogenes are needed for cells in normal tissues; none 4. Which of the following statements about tumor suppressor genes is true? Gene amplification of a tumor suppressor gene is more dangerous than gene amplification of a proto oncogenes; tumor suppressor genes are more highly expressed in cancer cells…Apoptosis can occur in a cell when the cell is damaged no longer needed infected by a virus all of the aboveDRAW IT Each blue circle in the figure below represents a cellin a cell lineage. Draw two modified versions of the cell lineageso that each version produces three cells. Use apoptosis in oneof the versions, marking any dead cells with an X.
- Which of the following statements correctly describes p53? Which of the following statements correctly describes p53? A) It is a membrane receptor that binds to growth factors such as EGF. B) p53 binds to pre-replication complexes promoting the transition from G1 to S phase. C) p53 activates cyclin-CDK complexes. D) Activation of p53 leads to inhibition of the cyclin-CDK complexes. E) Cell division stops until p53 binds to DNA and repairs the damage.Which of the following would you expect to have the fastest response in the cell? Protein Phosphorylation DNA Methylation RNA Splicing Transcription RepressorWhich of the following is true with respect to cyclins and CDKs? A) CDKs promote progression of the cell cycle, cyclins function to inhibit progression of the cell cycle B) CDKs are the checkpoints in the cell cycle, and when bound to cyclins, they stop progression of the cell cycle C) CDKs will only work to promote progression of the cell cycle when complexed with their designated cyclins D) CDKs are rarely expressed during a cell's cycle, unless cyclins are present to act as transcription factors .