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A: Cell cycle is the series of events that occur in a cell during it's growth and development.
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Q: Stage of the Cell Cycle Number of Cells Interphase Prophase Metaphase Anaphase Telophase
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A: Answer is option d.) mitosis.
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Q: metaphase G1 anaphase S interphase G2 prophase M Go telophase cytokinesis
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Q: Difference of metaphase from metaphase I
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Q: What is the correct order of these phases? Prophase metaphase anaphase telophase interphase…
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Q: Final preparations for cell division are made during this stage of the cell life cycle: (a) G1, (b)…
A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…
Q: Last part of interphase in the parent cell Event that divides a cytoplasmic mass G2 Period of cell…
A: 1. Last part of interphase in the parent cell - G2 2. Event that divides a cytoplasmic mass -…
Q: Match each stage with the events listed. ___ metaphase a. sister chromatids move…
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Q: Mitotic Anaphase Metaphase I O Mitotic prophase O Anaphase I Anaphase II Mitotic Metaphase Intephase…
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Q: Cell growth, ATP production, and protein production occurs in what stage of interphase? O GO phase O…
A: During G1 phase, the cell grows in size and synthesizes mRNA and protein that are required for DNA…
Q: Which of the following does not occur during interphase? (a) (b) (c) (d) DNA is replicated. Spindle…
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Q: Match the type of cell division with the cell type. sec cells
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Q: What are the stages of mitosis. Nuclear membrane is disappearing. Spindle fibers form and become…
A: Mitosis is a cell division in which one cell divides into two cells. It occurs in somatic cells.
Q: When the nuclear membrane fragments and the DNA coils into visible chromosom 1) prophase b)…
A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…
Q: During which phase of the cell cycle is DNA replicated? O G1 phase O G2 phase O S phase O M phase
A: The cell cycle represents a series of ordered events which must take place in order to prepare a…
Q: During which mitotic phases are duplicated chromosomes present? Select one: A. Prophase and anaphase…
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Q: this would be the chromosome behavior for onion root tip thank you
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Q: In which phase are chromosomes not visible? O prophase O anaphase interphase O metaphase
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Q: During cell division, one of the daughter cells ended up with one more chromosome than the other…
A: The cell cycle has 4 phases G1 phase:cell size increases S phase:copies of DNA is formed G2…
Q: Match the mitotic cell division stage to its description. chromosomes randomly attach to spindle…
A: The alphabets of the stages of mitosis have been matched with their description as below:
Q: TELOPHASE This stage shows the end of Telophase AFTER cytokinesis has occurred • Nuclear membrane…
A: Mitosis: Also called equational division since, at the last stage of the cell cycle, 2 daughter…
Q: Functions of cell division: 1. 2. 3. All somatic cells (body cells of plants and animals) go through…
A: Mitosis is equational division. Meiosis is reductional division.
Q: What is the role of centrosomes during cell division? OA. to form the spindle fibers that attach to…
A: Cell Division: It is a process through which the old cells divide into daughter cells and transfer…
Q: The stage in which daughter chromosomes move toward the poles of the spindle is: A Anaphase…
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Q: When the nuclear membrane reforms and the DNA loosely coils into chromatin a) prophase b) metaphase…
A: Mitosis is an equational division. It is found in the growing and repairing cells.
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- List the regulatory mechanisms that might be lost in a cell producing faulty p53.(46) A mutated form of protein pox is found in patients with squamous cell carcinoma. In vitro studies show that the normal p5x molecule binds to DNA, and neoplastic cells accumulate in the G0 phase of the cell cycle. In contrast, the mutated form of p5x does not bind to DNA. These finding are most characteristics of which of the following? (A) Growht factor receptors (B) GTP-binding protein (C) Nonreceptor tyrosine kinases (D) Oncogene proteins (E) Tumor suppressor gene proteinsRelate histopath criteria of cancer (unifrom population of pleimorphic cells, variable cytoplasmic nuclear ratio, multiple/bizarre nucleoli and frequent/bizarre mitotic figures) to H nana cell cycle & chromosomal instability. To answer the question, analyze the image attached and discuss how many of the mutations in cancer affect the normal regulation of the cell cycle, particularly the G2 checkpoint where mutations are supposed to be caught and not passed on.
- Discuss the complete cell cycle in a human cell, mitosis and meiosis, and the regulatory components (i.e. the proteins associated with cellular checkpoints) of the cell cycle. Tumor growth results when the cell cycle checkpoints are ignored. Give an example of how tumor growth could result from either a loss-of-function or a gain-of-function mutation.(46) A mutated form of protein p5x is found in patients with squamous cell carcinoma. In vitro studies show that the normal p5x molecule binds to DNA, and neoplastic cells accumulate in the G0 phase of the cell cycle. In contrast, the mutated form of p5x does not bin d to DNA. These finding are most characteristics of which of the following? (A) Growht factor receptors (B) GTP-binding protein (C) Nonreceptor tyrosine kinases (D) Oncogene proteins (E) Tumor suppressor gene proteinsIn your own words: Describe the molecular mechanisms involved in P53’s role as a tumor repressor protein.
- Explain why mutations in tumor suppressor genes are recessive (both copies of the gene must be defective for the regulation of cell division to be defective), whereas mutations in oncogenes are dominant.Changes in the activity of a variety of Cdks are essential for accurate progression through the cell cycle, and yet the levels of Cdk expression are fairly constant during the cell cycle. Briefly describe three mechanisms by which the activity of Cdks is regulated.could you explain a bit more what this sentences mean: The information displayed demonstrates a significant increase in cell proliferation inside the dentate gyrus of mice that were locked in voluntary exercise compared to the control group. The use of 5-Bromo-2'-deoxyuridine (BrdU), a thymidine analog, permits the following of recently formed cells because it is incorporated into the DNA of dividing cells amid the S stage of the cell cycle. The immunocytochemical examination uncovered a 67% increase in BrdU-labeled cells within the running group, meaning upgraded neurogenesis, which is factually noteworthy as shown by the p-value of 0.0001. The observation that the runner group effectively utilized the running wheels given in their cages relates to the increment in BrdU-labeled cells.
- #9) Cancer cells generally have missense mutations in p53 gene, resulting in truncated p53 normally active p53 dominant negative p53 inactive p53 #2) When cancer cells have not spread beyond its original site, the term used to describe it is benign growth intraepithelial neoplasia carcinoma stage 3 carcinoma in sit #10) Single or double stranded breaks in DNA activate Chk 1 and 2 kinases, which phosphorylates p53. This results in --- in the level of p53 in the cell. increase decrease please answer them all. they are very short and won't take your time. Thank you in advance.Match the term with the correct description. Nuclear membrane reforms Answer 1Choose...S phaseAnaphaseTelophaseG2 phaseMetaphaseCytokinesisProphaseG1 phase Chromosomes move to the middle of the cell Answer 2Choose...S phaseAnaphaseTelophaseG2 phaseMetaphaseCytokinesisProphaseG1 phase Sister chromatids move to opposite ends of the cell Answer 3Choose...S phaseAnaphaseTelophaseG2 phaseMetaphaseCytokinesisProphaseG1 phase Division of the cytoplasm Answer 4Choose...S phaseAnaphaseTelophaseG2 phaseMetaphaseCytokinesisProphaseG1 phase Period of growth to prepare for mitotic phase Answer 5Choose...S phaseAnaphaseTelophaseG2 phaseMetaphaseCytokinesisProphaseG1 phaseDescribe the effects of the over-expression of mdm2 on cell proliferation and apoptosis on cell signaling pathways and metabolism or cell cycle control. Briefly explain the normal role of each component in the context of the pathway and why its loss or modification would have the expected effect.