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PSIO 431 IMMUNO UAZ QUESTIONS AND ANSWERS
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41

March 2026

2025/2026

A+
PSIO 431 IMMUNO UAZ QUESTIONS AND ANSWERS A new species of rodent is found on a tiny island. Genetic analysis shows that it is fully inbred. When its immunoglobulin genes are examined, its H chain region shows 4 V, 3 D and 5 J segments. It has no lambda light chains, only kappa; they have 5 V, and 3 J (there are no D regions in light chains). So, ignoring any somatic mechanisms except V(D)J recombination, the germ line alone predicts that this animal could make how many antibodies? 4...
STANGRADES
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PSIO 431 Exam 2 Questions and Answers with complete
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12

March 2026

2025/2026

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What are the specifications for a successful T cell? - ️️1. It must not recognize self to bind tightly to become activated 2. It must not recognize free antigen 3. Recognize antigenic peptide plus self MHC. Explain the process of B cells receiving help from T cells. - ️️1. B cell binds to epitope it is specific for. 2. Then endocytoses the bound molecule,and is broken down in endocytic vesicle 3. peptide fragments bind with MHC class II brought by vesicles that fuse with endosome...
Brainarium
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PSIO 431 Exam 1 Questions With Correct Solutions, Already Passed!!
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6

March 2026

2025/2026

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what does histamine do - ️️causes vasodilation and vascular permeability what do the granule components of mast cells do - ️️call in neutrophils and eosinophils what is immediately degranulated by mast cells - ️️Tryptase, cytokines, histamine, neutrophil chemotactic factor, eosinophil chemotactic factor what do mast cells have to make - ️️prostaglandins, leukotrienes, cytokines, growth factors where are PRRs found - ️️on surface of T cells, B cells, neutrophils, almost...
Brainarium
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PSIo 431 Study Guide Rated 100% correct
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7

March 2026

2025/2026

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During contraction, all of the following happen, EXCEPT: Question 6 options: The H/M line disappears The Z-lines move closer together The A-Bands get shorter The I-Bands get shorter The A-Bands get shorter A decreased afterload would have the following affect: Question 7 options: Pulmonary edema would develop Left ventricle would dilate Heart would contract more quickly Heart would contract more quickly Apart from lymphocytes, which type makes up the HIGHEST percentage of white cell...
Brainarium
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PSIO 431 Test 1 Questions With Correct Solutions, Already Passed!!
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1

March 2026

2025/2026

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What do PRRs recognize? - ️️PAMPs or DAMPs PAMP - ️️Pathogen-Associated Molecular Pattern DAMP - ️️Damage-Associated Molecular Pattern TLR - ️️Toll-Like Receptors What happens when TLR bind foreign patterns? - ️️Signaling cascades are activated (PAMP; releases cytokines) -> expression of factors that cause inflammation 4 Commensal Floras - ️️- Good bacteria - Antibiotics - Defensins - Cathelicidins PRR - ️️Pattern-Recognition Receptors 6 Stimuli for Acut...
Brainarium
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PSIO 431 FINAL QUESTIONS AND ANSWERS | 2026 UPDATE | WITH COMPLETE SOLUTION
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24

March 2026

2025/2026

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What is SCID-X1? Where is the defect located? - CORRECT ANSWER-More than half the cases are X-linked. In the commonest of these (SCID-X1), the defect is in the gene for the gamma chain that forms part of the receptors for IL-2 (Th1 secretes IL-2, which helps CTL (killer T cells) get fully activated after they recognize antigen.) and other growth factors necessary for lymphoid development, or their signaling pathways. What is the other mode of inheritance (not X linked) for people with SCID?...
Brainarium
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psio 431 test review | Questions and Answers | 2026 Update | 100% Correct.
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1

March 2026

2025/2026

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A pregnant woman finds out that she has been exposed to measles. She is worried that her fetus might be infected. You take a cord (fetal) blood sample and find antibodies that bind to the measles virus!! After calling the lab for more information, you tell the woman not to worry. What did you tell her next? - ️️The antibodies to measles were IgG, so the fetus is making it's own immune response so not to worry ________ cells make ________ to attract and retain "alternatively activa...
Brainarium
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Exam (elaborations)

PSIO 431 EXAM I QUESTIONS AND ANSWERS | 2026 UPDATE | WITH COMPLETE SOLU
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30

March 2026

2025/2026

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what are commensal floras? - ️️good bacteria, antibiotics, defensins, cathelicidins that live on skin and protect us from bad bacteria what structures of the innate immune system are important for starting the inflammatory process? - ️️PRRs (t) or (f): all invertebrates and vertebrates have PRRs - ️️true what are the functions of the *innate* immune system? (4) - ️️1) detect intruders 2) inactivate intruders 3) destroy intruders 4) remove intruders (t) or (f): invertebra...
Brainarium
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PSIO 431 IMMUNO UAZ | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH COMPLETE SOLUTION
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47

March 2026

2025/2026

A+
PSIO 431 IMMUNO UAZ | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH COMPLETE SOLUTION
EvaTee
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