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#antigen presentation

8 public questions tagged with this topic.

Microbiology and Immunology

During antigen presentation by antigen presenting cells, viral antigens are processed and presented to T cells in the co

This outcome reflects antibody structure, where immunoglobulin fold with antiparallel beta-sandwich provides antigen binding. Option A captures this correctly because it demonstrates immune recognition architecture, consistent with textbook descriptions and experimental observations in immunology.

Ref: Owen, Punt and Stranford, Kuby Immunology, 8th Edition, Chapter 4, Antibody Structure, covers immunoglobulin domains, beta-sheet organization and antigen binding detailing immune recognition.

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Molecular Biology and Cell Biology

A T- cytotoxic cell can be induced to mount a cytotoxic attack on a virus-infected cell if it binds to a cell displaying

In cell biology, cellular compartmentalization and cell cycle dictates that SNARE-mediated trafficking, Hayflick limit, P53 and cyclin regulation control proliferation. Therefore MHC I bearing foreign antigen. is correct as it aligns with membrane trafficking and cell cycle control, supported by mechanistic studies and conserved across related systems.

Ref: Alberts et al., Molecular Biology of the Cell, 6th Edition, Chapter 17, Cell Cycle and Regulation, explains Cdc2, cyclins, P53, proteasomes, Hayflick limit, primary culture and immortalization mechanisms governing proliferation.

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General Biology and Plant Biology

CD1 molecules are unique antigen-presenting molecules because they

In immunology, antibody structure dictates that immunoglobulin fold with antiparallel beta-sandwich provides antigen binding. Therefore are MHC Class-I-like molecules presenting lipid and glycolipid antigens is correct as it demonstrates immune recognition architecture, supported by mechanistic studies and conserved across related systems.

Ref: Janeway et al., Immunobiology, 9th Edition, Chapter 3, Antigen Recognition, discusses immunoglobulin fold, beta-sandwich of antiparallel beta sheets, antibody structure and humoral immunity explaining specificity.

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General Biology and Plant Biology

MHC class-II molecule can signal because it

antibody structure analysis shows immunoglobulin fold with antiparallel beta-sandwich provides antigen binding. Consequently interacts with membrane receptors to make a supramolecular complex that signals emerges as the valid choice since it demonstrates immune recognition architecture, aligning with established principles in immunology literature.

Ref: Owen, Punt and Stranford, Kuby Immunology, 8th Edition, Chapter 4, Antibody Structure, covers immunoglobulin domains, beta-sheet organization and antigen binding detailing immune recognition.

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Biochemistry and Aptitude and Reasoning

Which of the following cells is important for generation of antigen-specific effector T-cells?

Mechanistically, quantitative reasoning involves ratio, percentage and series logic determine correct calculation. This validates Dendritic cells because it meets mathematical and logical criteria, a pattern repeatedly demonstrated in aptitude and reasoning research.

Ref: Agrawal, Quantitative Aptitude for Competitive Examinations, Chapter 5, Logical Reasoning and Probability, covers ratios, percentages, series completion, time-distance and analytical reasoning explaining problem-solving strategies for competitive assessments.

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Immunology

Antigen presentation to naïve T cells occurs mainly in

Secondary lymphoid organs, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Immunology

Dendritic cells primarily function to

Present antigens to T cells, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Cancer

Cytotoxic T cells kill cancer cells by recognizing antigens presented on

MHC-I molecules, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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