00:01
Hi everyone, the given question is about immune response.
00:05
The question has multiple parts.
00:07
Let us solve one by one.
00:10
The first one is about a mutation that causes t helper cells to be unable to respond to cytokines.
00:19
We know that th2 cells mediate activation and maintenance of humoral immune response.
00:36
That means antibody mediated, immune response against extracellular parasites bacteria allergens and toxins th2 cells mediate these functions by producing various cytokines such as il 4 i'll 5 i'll 6 i'll 9 13 etc and these cytokines are responsible for strong antibody response so this mutation in the question would cause a patient to be deficient in the activity of option c production of antibody.
01:40
Coming to the next question, it is about the goal of first line of defense.
01:46
The goal of the first line of immune defense is to prevent pathogen entry into the system.
02:03
Coming to the next part of the question, it is about primary immune response and humoral memory.
02:14
In contrast to the primary immune response, humoral memory generates higher antibody levels than the primary immune response.
02:48
Coming to the next part of the question, it is about second and third line of difference...
