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- Outline the steps that lead to a cell becoming cancerous.If the M checkpoint is not cleared, what stage of mitosis will be blocked? prophase prometaphase metaphase anaphaseCompare the chromosome content of daughter cells following mitosis with that of the parent cell before its chromosomes were duplicated.
- Which of the following statements about cell cycle regulators is incorrect? a. The concentrations of cyclins change throughout the cell cycle. b. Cyclins are present in all stages of the cell cycle except S. c. Cyclin-Cdk complexes phosphorylate target proteins. d. Cdks combine with cyclin to move the cycle into mitosis. e. During anaphase of mitosis, cyclin is degraded, allowing mitosis to end.2. Explain what the cell is doing in each of the following stages of the cell cycle.a) G1, b) S, c) G2, d) M8. a. What are the four major stages of the cell cycle?b. Which stages are included in interphase?c. What events distinguish G1, S, and G2?
- 1. A defective white blood cell does not complete the process of DNA replication. Which of the following is most likely to occur during the cell cycle for this cell? a. The white blood cell will be stopped at the G1 checkpoint and sent to the G0. b. The G2 checkpoint will stop the cell from continuing in the cell cycle. c. The white blood cell will get stuck at the spindle checkpoint. d.The cell will continue on to cytokinesis. 2. Which of the following statements describes how the RNA sequence specifies the production of an amino acid chain? a. Each set of three bases codes for an RNA molecule that specifies the anticodon. b. Each set of three bases codes for a single amino acid. c. Each base codes for one amino acid. d. Each group of three bases codes for an enzyme that binds amino acids together. 3. What will most likely happen when the -35 element and pribnow box are mutated? a. RNA Polymerase II will not be able to bind to the promoter region. b. Prokaryotic RNA…1. Describe the cell cycle. Why do cells divide? Why are the resulting daughter cells from Mitosis genetically identical? How can abnormal (cancerous) growth cell growth be prevented?1. a. What are the three categories of genes mutated in cancer cells? What is the effect of mutation of each? b. What is the function of checkpoint controls in the cell cycle? What is checked at G1, S, G2 and M phase before the cell can progress to the next phase?
- 1) Examine the picture of an onion root tip with cells in various stages of the cell cycle. A student claims that interphase is the longest stage of the cell cycle. Another student claims that mitosis is the longest stage. Using evidence from the photo, determine which student is correct and why. A) Mitosis is the longest stage because anaphase requires more time to separate chromatids. B) Interphase is the longest stage because chromosomes are visible in the majority of the cells. C) Mitosis is the longest stage because the majority of the cells in the photo are replicating their DNA. D) Interphase is the longest stage because the majority of the cells in the photo have uncondensed chromatin and are not dividing. Not GradedList the phases of the cell cycle and describe the key events of each phase.The cell cycle is typically thought of as having four stages. Describe the stages of the cell cycle and identify the mechanism(s) involved in progressing or not progressing through the stages with reference to proteins and signalling processes involved. Please keep brief - 10 sentences/dot points max.