TA tutorial questions

Question 1

Allelic exclusion ensures what?

Answer 1

B cells express clones of BCR with same specificity

Question 2

which Ab can form multimers

Answer 2

IgA
monomer in plasma
dimer in mucous secretion

& IgM

Question 3

which of following doesnt invovled chanigng in DNA sequence

-switching between transmmebrane & secreted form of Ab
-somatic recombination
-class switching

Answer 3

-switching between transmmebrane & secreted form of Ab
–still on RNA level

Question 4

T cells undergo somatic hypermutation & affinity maturation after initial infection. True or false

Answer 4

FALSE

its the B cells that does it

Question 5

central emmory T cells are less differntiated than effector T cells?

Answer 5

TRUE

effector T cells are alrready done
central memory T cells can still differentiate into more specific types, (sloweR)