The MMR vaccine gives protection against measles, mumps and rubella. How? (4 marks)

. Vaccine contains antigens from the pathogens . This is recognised by helper T cells which activates other helper T cells and B cells . B cells undergo clonal selection and produce memory + plasma cells . Plasma cells produce antibodies that have a binding site that is complimentary to the shape of the antigen . If the individual were to be infected, then a secondary response would take place and symptoms would not be felt.

MV
Answered by Mohit V. Biology tutor

3051 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Describe how the RER is involved in the production of enzymes. [2 marks] June 2014


Explain synaptic transmission at a cholinergic synapse.


Explain how the structure of an enzyme allows for it to act as a biological catalyst


What is negative feedback?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning