Molecular and cell biology

Immunology interview questions

Immune-cell function, immune responses, assay interpretation and therapeutic mechanisms.

6 questions, each with a worked answer

How does innate immunity differ from adaptive immunity? Fundamentals Concept
What would you check before concluding a cytokine increased T-cell activation? Fundamentals Concept
How would you distinguish T-cell activation from expansion of a preexisting activated subset? Intermediate Scenario
What is the difference between central and effector memory T cells? Intermediate Concept
Why may an antibody block a receptor in one assay but activate it in another? Advanced Concept
How would you design controls for antigen-specific T-cell stimulation? Advanced Scenario

About Immunology

Immunology studies how the body recognises and responds to threats, through innate defences and the adaptive responses of B cells and T cells. In biotech it matters twice: as the target of vaccines, antibodies, cell therapies and immunomodulators, and as a source of risk such as immunogenicity and cytokine release. Immune assays are noisy and context dependent, so controls and specificity carry a lot of weight.

Understanding the biology is what lets you tell a real effect from an artefact.

Fundamentals: 2
Intermediate: 2
Advanced: 2

What these questions test

Interpret immune-response data: Evaluate immune assays using relevant functional and specificity controls.

References

NCBI Bookshelf. National Library of Medicine. ncbi.nlm.nih.gov/books.
immunology.org/public-information/bitesized-immunology/systems-processes/t-cell-activation.
nature.com/articles/44385.
pmc.ncbi.nlm.nih.gov/articles/PMC9655775.
pmc.ncbi.nlm.nih.gov/articles/PMC8377590.

Practice material written by TheBench.Bio and checked against the references above, reviewed October 23, 2026. Written to practise with, not collected from real interviews.