Choose the letter of the best match from the following. A. Spindle Checkpoint B. Checkpoint to look for properly replicated Chromosomes C. Time of the most cell growth D. Primary checkpoint where external factors (i.e. nutrition, growth factors, size of cell) will influence if cell divides. E. Duplicate copy of the hereditary information is made. F. None of the Above select - 1. G, select - 2. S select - 3. G2/M select - 4. M select - 5. G1/S select 6. G2

Choose the letter of the best match from the following. A. Spindle Checkpoint B. Checkpoint to look for properly replicated Chromosomes C. Time of the most cell growth D. Primary checkpoint where external factors (i.e. nutrition, growth factors, size of cell) will influence if cell divides. E. Duplicate copy of the hereditary information is made. F. None of the Above select - 1. G, select - 2. S select - 3. G2/M select - 4. M select - 5. G1/S select 6. G2

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter33: Plant Structure, Growth, And Development

Section: Chapter Questions

Problem 10TYU: Cell differentiation occurs through _______________, whereas morphogenesis involves _______________....

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Which of the following need to be expressed to get past the G1 checkpoint and why? Select one: a. All the answers are correct and needed to progress the cell past the G1 checkpoint by expressing the enzymes necessary for DNA replication. Once these proteins are all expressed, the cell has moved past G1 into S phase. b. Primase because this enzyme is needed for DNA replication moving the cell from G1 to S. c. Cyclins because the accumulation of specific cyclins will turn on CDKs needed to turn on gene expression for proteins involved in DNA replication, moving the cell from G1 to S. d. DNA helicase because this protein is needed for DNA replication (part of S phase). So expression will help progress the cell from G1 to S.
Which of the following statements is true about cell cycle checkpoints? Question 5 options: A) G1 checkpoint check for cell size, nutrients, and growth factors availability. B) G2 checkpoint check for cell size, nutrients, growth factors, & DNA damage. C) G2 checkpoint check for chromosome attachment to spindle at metaphase D) All the above are true.
Define the following terms: a. cell transformation b. oncogene c. apoptosis d. early response gene e. delayed response gene
In the experiment below, you have treated cells with different cancer drugs, stained them with propidium iodide, and analyzed them by flow cytometry. Which of the following histograms illustrates what you would expect to see in the event that the spindle assembly checkpoint is activated (focus on the solid line, the dotted line is normal cell cycle control)? 1. D 2. C 3. A 4.B
Which of the following statements about the cell cycle is TRUE? a. The protein APC blocks cells from entering anaphase b. CDKs are degraded after each cell cycle phase by the addition of a ubiquitin chain to the proteins c. A kinase is a protein that adds a ubiquitin chain to other proteins Cyclin activity is necessary, but not always sufficient, for CDK activation d. Cyclin proteins must be degraded before Cdk proteins can be activated
Which of the following is typical of cancer cells? A. The parent cell of the tumor contains a single mutation in a single checkpoint gene. B. Malignant cells migrate. C. Cancer cells lose the ability to divide. D. Products of oncogenes inhibit mitosis E. Benign tumors invade normal tissue.
Which of the following is a change to the CdK/cyclin system that could result in cell division followed by cell death? Group of answer choices A. Increased production of CdK B. Decreased production of cyclin during G2 C. Increased production of cyclin during G2 D. Cyclin not broken down by mitosis E. Breakdown of CdK by mitosis
a. Why are cell cycle checkpoints important? b. What happens to a cell that fails to meet the requirements of a checkpoint and is not able make the necessary improvements or repairs?
Which of the following are characteristics of benign tumors? Select all that apply. a.They can migrate and grow in other tissues through metastasis. b.They grow quickly. c.They are slow growing. d.They stay in their home tissue.
Which 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 .
Which of the following statements regarding cyclin B is FALSE? Group of answer choices It is a component of the mitosis or maturation promoting factor (MPF) Its production and activation is linked to extracellular stimuli It interacts and activates CDK1 protein kinase Its destruction by APC/C signals the end of mitosis All of the above are true
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.