QUESTION 11 Monoclonal antibodies originate from a single B-cell clone are secreted by hybridomas (made from multiple myeloma—cancer of the plasma B cells) are used in immunology lab tests, therapies of different diseases including in cancer therapy and against COVID infection All of these choices are correct
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Monoclonal antibodies do originate from a single B-cell clone. This is correct because monoclonal antibodies are identical immune cells that are all clones of a unique parent cell, meaning they originate from one B-cell clone. Show more…
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Monoclonal antibodies___. a. are produced by hybridomas b. are secreted by clone cells c. can be used for passive immunization d. all of the above
A man is scratched by his cat. A phagocyte near the scratch site recognizes and engulfs a bacterium. Shortly thereafter, more phagocytes arrive in the tissue surrounding the scratch. How are the additional phagocytes recruited to the site of the scratch? Select one: a. By cytokines secreted by the initial phagocyte. b. By antigens secreted by the bacteria. c. By cytokines produced by the bacteria. Antibody diversity is primarily the result of: Select one: a. gene silencing. b. mRNA splicing. c. genomic rearrangement. d. differential gene expression. Choose the correct sequence of words to fill the gaps: After clonal selection, B cells become either plasma cells that secrete antibodies, or memory cells with membrane-bound antibodies. Select one: a. memory; antigens; plasma b. memory; antibodies; plasma c. plasma; antibodies; memory d. plasma; antigens; memory Which of the following characterizes sexual reproduction? Select one: a. Genome replication followed by cell division. b. A process involving meiotic cell division and fertilization. c. A process by which new organisms arise by the splitting of one organism into pieces. d. A process in which unfertilized eggs divide by mitosis and develop into new individuals. The job of a natural killer cell is to: Select one: a. destroy invading pathogens through phagocytosis. b. trigger inflammation. c. release histamine. d. destroy infected or abnormal host cells.
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Monoclonal antibodies are produced from hybrid cells called as hybridomas. The cells fused to obtain these hybridoma cells are A. B - lymphocytes and myeloma cells B. Lymphoma cells and bone marrow cells C. T - lymphocytes and myeloma cells D. B - lymphocytes and carcinoma cells
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