Exposure to test compounds for several days is commonly used to determine if they cause an inhibition of cell proliferation. What words in this sentence are nominalizations?
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Exposure to test compounds for several days is commonly used to determine if they cause an inhibition of cell proliferation.
What words in this sentence are nominalizations?
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- What is cell proliferation rate and explain how is cell proliferation measured?Explain why the process of cell fusion is necessary to produce monoclonal antibodies used for research.Which is true for cancer cells: 1) Cell death occurs after a determined number of cell divisions 2) Contact with other cells reduces chance of cell division 3) Cell division occurs in the presence of stop signals.
- Why are histopathologists interested in the percentage of mitotic cells in a tissue biopsy? 1.High rates of cell division (i.e. a high mitotic index) are characteristic of tumours 2.Low rates of cell division (i.e. a low mitotic index) are indicative of tumours 3.Mature differentiated cells continue to go through the cell cycle 4.They are interested in looking for misshapen cells.how are the hallmarks resisting cell death and enabling replicative immortality essential for cancer development. explain each in 3-5 sentences.A 4-gram tumor is treated with a total dose of 50 Gy of X-ray. The fractionated treatment (25 daily fractions of 2 Gy each) results in an effective survival curve that has no shoulder and a D0 of 2.5 Gy. Assume that 1 gram of tumor contains 109 tumor cells. How many tumor cells survive this treatment?
- In a Cervical Cancer screening program, 500 asymptomatic women were examined using the Pap smear test. 200 of the women who truly had lesions were correctly classified; 14 with lesions were wrongly classified as negative. 253 women who had no lesions were correctly classified; 33 women with no lesions were wrongly reported as positive. (A) Summarise the information provided in an appropirate table. (B) Based on the information above, calculate the Sensitivity, Specificity, Positive and Negative Predictive Values of the Pap smear test.A local community is experiencing a surge in lung cancer cases. Residents blame the increase on a chemical plant that opened last year.A number of pollutants emitted from the plant are found to be positive in the Ames Test. What are arguments against this plant being a cause of increased cancer incidences (limit 5-6 sentences)?Looking at Figure 1, what did Romansik et al. (2007) find regarding the relationship between the mitotic index and tumor grades. Explain their findings in your own words. Use specific details from Figure 1. The research paper is here: https://journals.sagepub.com/doi/10.1354/vp.44-3-335
- The growth fraction of the cancer types A 8, C, and D are 23%, 45%, 56%, and 78%, respectively. Which type of cancer is more suceptible to the chemotherapy?Part A and B A. What is the normal function of the Rb protein? A) Rb prevents the cell cycle from proceeding unless the cell is prepared to do so B) Rb causes cells to undergo apoptosis C) Rb promotes Cdk activation D) Each of the other selections is true E) Rb repairs damaged DNA B. How do tumors arise? A) When cell proliferation occurs at a higher rate than cell death B) When someone is infected with a tumor from another person C) When cell death occurs at a very high rate D) When cell proliferation occurs at a very low rate"In the cellular regulatory pathways that control cell growth and proliferation, the products of oncogenes are stimulatory components and the products of tumor suppressor genes are inhibitory components" is true or false.