1. A poorly differentiated cancer is best described in appearance as a) close to
ID: 707500 • Letter: 1
Question
1. A poorly differentiated cancer is best described in appearance as a) close to normal cells b) far from normal cells c) having poorly defined nuclei d) having large areas where apoptosis is occurring 2. Which of the following is (are) possible characteristics of cancer cells? a) lack of contact inhibition b) not noticed by immune system because they have lost cell surface markers c) lack communication between cells d) all of the above 3. What is a term used to describe a secondary growth from the primary neoplasm? a) Metabolism b) Mutation c) Metastases d) Biotransformation are like an accelerator of cell proliferation or transformation, while 4, brake a) tumour suppressor genes; proto-oncogenes b) oncogenes; tumour suppressor genes c) proto-oncogenes; oncogenes d) tumour suppressor genes; oncogenes 5. Choose the correct progression of carcinogenesis: a) Metastasis > promotion > clonal expansion > initiation > progression> angiogenesis b) Initiation> promotion> clonal expansion progression > metastasis > angiogenesis c) Initiation > progression> clonal expansion > promotion metastasis > angiogenesis d) Initiation > promotion> progression> clonal expansion> metastasis > angiogenesis 6. Which of the following are characteristic of a malignant tumor cells? a) Invasive b) Rapidly Growing c) Nonencapsulative d) All of the above 7. The promoter a) Leads to an irreversible result b) Requires the initiator in order for carcinogenesis to take place c) Attacks cell proteins and membranes d) Binds covalently with DNA 8. Epigenetic Carcinogens Inrnduce collagenase in order to dissolve basement membranes of cells are inorganicExplanation / Answer
Ans 1 : b) far from normal cells
When the cancer is well differentiated it resembles the noraml tissue from it originated in its appearance. Now when it is poorly differentiated , its appearance does not resemble the normal cells. In such a case it becomes difficult to determine the parent tissue and the target treatment for it.
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