Which of the following binds to the Fc portion of the antibody?     A. C1q   B. C2a   C. C1r   D. C1s   E. C2b

Q: A patient with a _______ titer of antibodies to an infectious agentgenerally has greater protection…

A: The human immune system has antibodies against specific antigenic targets. These antibodies act upon…

Q: Which molecule would you not expect to be produced by neutrophils? Select one: a. RIG-like…

A: Neutrophils These are the most abundant type of granulocytes. Neutrophils make up about 40% to 70%…

Q: pattern recognition receptor is cell receptor on a. cytokine b. monocyte c. epitope d. A and B

A: Pattern recognition receptor is found on the cells in our immune system.

Q: Which of the following interactions will NOT provoke an immune response?     A. Endogenous antigen +…

A: Ans - d) Endogenous antigen + MHC Class I + BCR, will not provoke an immune response. The two types…

Q: Farmer's lung is a hypersensitivity pneumonitis resulting from a. a type I hypersensitivity reaction…

A: The body's defence mechanism against allergens, autoimmunity, and venom is hypersensitivity. Pollen,…

Q: Which ONE of the following genes is most likely mutated in T‐cell acute lymphoblastic leukaemia?…

A: T-cell acute lymphoblastic leukaemia (T-ALL) is an acute leukaemia. It is aggressive and progresses…

Q: Once Tfh cells have been activated against vaccine delivered intramuscularly which Constant (C)…

A: There are five classes of immunoglobulin or antibodies. All these antibodies have variable and…

Q: his člašš of antibody is a pentamer. . O a. IgG O b. IgE Oc IgD

A: Answer. Antibodies, the antigen binding glycoproteins are synthesized exclusively by B cells in…

Q: In the laboratory you observe that IL-4 stimulates the proliferation of B cells, cytotoxic T cells…

A: Introduction: Cytokines are a group of proteins that serve as chemical messengers and are secreted…

Q: 1. Which of the following antibodies are of most use for the diagnosis of pernicious anemia:

A: Pernicious anemia is resulted by the deficiency of vitamin B-12 in the body. Vitamin B-12 is…

Q: The capsule of the infecting microorganism which is composed of polysaccharides can also activate…

A: Introduction  The immune response is a set of mechanisms that the body uses to protect itself from…

Q: The molecule will bind to a. Viral DNA, CD4 of the T-cells. b. Viral CD4, T-cells. c. Viral gp120,…

A: Microbes including bacteria and viruses can cause infective diseases on the host. They utilize…

Q: Which structure is not functioning properly if an electrical device is needed to stimulate the atria…

A: The heart has an electrical conduction system that consists of a highly constricted and controlled…

Q: w..*** Antibodies Select one: a. are shaped like the letter B b. assist in destroying particular…

A: An antibody (Ab), otherwise called an immunoglobulin (Ig), is a huge, Y-molded protein utilized by…

Q: In regard to antigen presentation, MHC class I molecules usually present peptides derived from…

A: Introduction: T cell receptors (TCR) are present on T lymphocytes that are one of the immune cells…

Q: Farmer's lung is a hypersensitivity a. a type I hypersensitivity b. a type II hypersensitivity c. a…

A: The body's defence mechanism against allergens, autoimmunity, and venom is hypersensitivity. Pollen,…

Q: The region of an antibody that is the antigen binding site is thea. constant region. b. variable…

A: Proteins that are Y-shaped that fight against the body’s foreign invaders are called Antibodies.…

Q: Pattern recognition receptors bind to Select one: a. B and T lymphocytes b. Host cell-associated…

A: Introduction Pattern Recognition Receptors are; Toll-like receptors (TLR) Nucleotide-binding…

Q: When first exposed to a foreign molecule, are the first class of antibodies generated a. cytokines…

A: The immune response is a set of responsive mechanisms carried out by the immune system of the body…

Q: Membrane-bound proteins that assist in maintaining contact between various human cell types are…

A: Cell junctions link many cells to one another. These are of three types: Occluding junctions…

Q: Antigen A of blood group A contains H-antigen attached to N-acetyl galactosamine Rhamnose Fucose…

A: Antigens are the substances present in the blood which helps in the production of antibodies against…

Q: After a second exposure to a vaccine,   Select one: A.  Antibodies are made slowly and in greater…

A: vaccines are killed or attenuated antigens or antigenic molecules . they are used to prevent…

Q: The nucleus of B lymphocytes receives the signal indicating that the corresponding epitope was found…

A: The B lymphocyte (B cell) is indeed one of the body's most essential cells. By developing antibodies…

Q: Protein receptors found on macrophages that recognize foreign antigens a. toll-like receptors…

A: Macrophages are a type of white blood cell that takes part in protecting the body against foreign…

Q: Viral antigens appear on the surface of the infected cell in association with which of the following…

A: Answer is d.)MHC-II complex.

Q: Which of the following is an advantage of using monoclonal antibodies over polyclonal antibodies in…

A: Immunoglobulins or otherwise called as antibodies. They are produced in response to several…

Q: Which factor binds to the C3 convertase to form the C5 convertase for all three pathways     A. C3a…

A: Compliment system is the way to destroy antigen by activating some compliment protein found in the…

Q: Which of the following are phagocytes? 1. Neutrophils II. Macrophages III. Natural killer cells

A: Phagocytes are a type of white blood cell that plays an important role in the body's immune system.…

Q: 22. Which of the following is NOT a characteristic of cell- mediated immunity? The cells originate…

A: Note :- Since you have posted multiple questions, we will provide the solution only to the first…

Q: During the secondary immune response, in the serum you would expect a. to find a greater…

A: Introduction The secondary immune response occurs on repeated antigen exposures, with a stronger…

Q: Which of the following binds to surface-bound C3b during formation of the alternative C3 convertase?…

A: An intrinsic part of the immune system's protection against pathogenic organisms is the alternative…

Q: 45. Which of the following would be involved in reacting to a first-time exposure to Mycobacterium…

A: Note:- Sorry, since you have posted multiple questions so we will be solving the first one for you…

Q: Which of the following is a type of cytokine? a. mast cell b. lysozyme C c. chemokine O d.…

A: Cytokines are the chemicals produced by the immune cells to protect the non- infected cells.

Q: The following reactions are obtained on ABO testing of a patient's blood sample. What is the most…

A: In ABO blood typing the reactions obtained on testing help determine an individuals ABO blood group.

Q: Which of the following statements regarding pattern recognition receptors is correct? 單選: A. They…

A: Pattern recognition receptors are a class of receptors that can directly recognize the specific…

Q: The secretory component in IgA monomer in an important for the transport of the antibodies. A.true…

A: IgA is a secretory immunoglobin which consists of two monomeric IgA molecules covalently linked…

Q: A young child is hospitalized with recurring bacterial infections, although she appears to make…

A: Humoral immune deficiencies are the conditions which are caused by the impairment of humoral…

Q: Cytotoxic T lymphocyte killing of virus infected target cells DIRECTLY depends on which of the…

A: Introduction: Cytotoxic T lymphocytes (CTLs) kill virus-infected target cells through the release of…

Q: Which of the following is true about antigen presentation, MHC involvement or T cell activation?…

A: Introduction = Major Histocompatibility Complex- Cluster of genes found in all mammalsIts products…

Q: the antibody produced in the secondary response a. IgM b. IgA c. IgG d. IgE

A: The immune system is very complex and immune response can be divided into two groups, cell-mediated…

Q: The MHC structure is critical for... a. Natural Killer Cells to identify healthy cells b. T cells…

A: MHC is a protein that plays a crucial role in presenting the antigens and then clearing the antigens…

Q: Which of the following are pattern recognition receptors? A, receptors for interferons B. lymphocyte…

A: Various PRRs can be secreted by cells, and bind straightforwardly to invading micro organisms. A few…

Q: Which part of an antibody binds to the antigen? a. Heavy chain. b. Light chain. c. Variable region.…

A: Which part of the antibody binds to antigen ? Answer : c. Variable region The variable region is…

Q: Select all correct matches: a. Heavy chain / the larger of the two protein chain types found in…

A: From above question Option a ,option c and option d are correct matches.