Immunology

Question 1

Explain how fetus is protected against pathogens that I’m back at Mother during pregnancy. (3)

Answer 1

-Binds to the antigens crossing placenta
-with the complimentary receptor
-gives passive immunity

Question 2

How can vaccinating as many babies as possible of protect the UK population against measles?

Answer 2

-herd immunity as more ppl immune
-less chance spreading

Question 3

How can vaccinating as many babies as possible of protect the UK population against tetanus?

Answer 3

-tetanus isn’t contagious
-protect ind from disease rather than spread

Question 4

Why is getting more than one vaccination good for immunity? (2)

Answer 4

-more memory cells
-more antibodies

Question 5

Using knowledge of ELISA test, how would you detect cells w/ BrdU in DNA? (4)

Answer 5

-add antibody to cell which binds to BrdU
-wash to remove excess cells
-add substrate to bind with enzyme
-see colour change