00:01
Which of these is a true difference between t and b cells? a, t cells but not b cells under go clonal selection.
00:09
B, only b cells are produced from the stem cells of a bone marrow.
00:14
C, t cells, not b cells, directly attack and destroy infected cells.
00:20
D, t cells, not b cells can recognize for an antigen.
00:24
Or e, only b cells take part in cell mediated immunity.
00:29
So let's debunk some of these.
00:30
Let's start with the e.
00:31
This is not true.
00:33
B cells take part in cell -mediated immunity.
00:36
T -cells do.
00:39
Remember, we've got the cytotoxic t -cells, but attack infected cells.
00:44
So they definitely take part in cell -mediated immunity.
00:47
B cells are more antibody...