Homework Answers
6. The correct option is A.
After positive selection in the cortex, immature T cell lymphocytes then move to the medulla and any cells that recognize high avidity self-antigens presented on MHC (I or II) are killed through APOPTOSIS.
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6) A newly-generated T cell can recognize MHCs and is not self-reactive. What is its fate?...
1. At the molecular level, what drives B cell development in the bone marrow? 2. What...
1. At the molecular level, what drives B cell development in the bone marrow? 2. What is the role of stromal cells in B cell development in the bone marrow? 3. Describe the sequence of events in B cell development with respect to rearrangement of heavy and light chain Ig genes. 4. Why does Ig gene rearrangement often fail to produce a functional protein product? What mechanisms exist to overcome this problem? 5. What is “allelic exclusion” and what is...
Indicate what step is correct (Select all that apply) Lymphocytes travel through the body in the...
Indicate what step is correct (Select all that apply) Lymphocytes travel through the body in the lymph as well as the blood Lymphocytes leave the blood through the walls of fine capillaries in 2ry lymphoid organs After spending some time in the LN, lymphocytes leave in the efferent lymph Lymphocytes return to blood at the subclavian vein A lymphocyte after encounter an antigen to which its receptor binds, stops recirculating. The spleen has no connection to the lymphatic system Lymphocytes...
I REQUEST ALL THE ANSWERS PLEASE Question 11 (2 points) Surface markers on pathogens are sometimes...
I REQUEST ALL THE ANSWERS PLEASE Question 11 (2 points) Surface markers on pathogens are sometimes referred to as: Question 11 options: A) PRRs B) TLRs C) PAMPs D) Fc receptors E) none of these Question 12 (2 points) In a normal individual, a T cell that interacts with a self-antigen in the thymus will more than likely undergo what process (which answer is best)? Question 12 options: A) apoptosis B) release granules C) activation D) extravasation E) anergy Question...
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