Mature B cells in the periphery may be made tolerant (unresponsive) by- The lack of co-stimulatory signals when they recognize self antigen Complement-mediated lysis of B cells Destruction by cytotoxic T lymphocytes (CTL) macrophage- mediated lysis

Q: Virus-specific T cell subset found in the brain after infection with the virus in question is= CD4+…

A: Tissue resident memory T cells (TRM) constitute a recently identified T cell lineage that is…

Q: Explain why each choice (a-d) is correct or incorrect. In clonal selection of B cells, which…

A: B cell expresses receptors ,that are specific to distinct antigen,  is determined before…

Q: According to the clonal selection theory, all immunoglobulin molecules in an individual B cell have…

A: *clonal selection theory states that antigen selects lymphocytes for activation from some cells  to…

Q: Which of the antibodies has a short lifespan and function mainly in aiding phagocytes by causing…

A: This function is carried out by the immune system. Immunity is divided into innate and adaptive.…

Q: about B cells in the following is: They can present both protein and non-protein antigens They can…

A: The immune system is a control network of organs and immune cells that detect and kill foreign…

Q: Based on the five major classes of antibodies given below, which of the following is present on the…

A: Antibody: It can be defined as a Y-shaped protein of the immune system responsible for detecting and…

Q: The process of removing auto-reactive b and T cells during maturation is called: a. Clonal…

A: Clonal deletion is the removal through apoptosis of B cells and T cells that has expressed…

Q: After a naive B cell encounters a 1 and binds an antigen with its2 it enguifs and degrades the…

A: Immune cells are of two types: B -cells and T-cells. The B-cells which has never encounter any…

Q: Compare B cell receptors and T cell receptors for the following criteria: BCR TCR Tyrosine kinases…

A: B-Cell Receptors These are those specific receptors that are present specifically on the surface of…

Q: Outline the process of B-cell activation against a T-dependent antigen.

A: B cells, also known as B lymphocytes, are a type of white blood cell of the small lymphocyte…

Q: What accounts for the change in a B cell’s ability to bind antigen?

A: B cells are also known as B lymphocytes are special types of blood cells which belong to the group…

Q: Capturing antigen by macrophage T-resting T-help T-helper cells cells MAF - - ---..........>…

A: An immune response is the immune system reaction that is triggered by an antigen. It describes how…

Q: All nucleated cells in the body present antigens to ____________ T cells via the ______________…

A: A complex network of cells, tissues, and organs that work collectively to protect the body and fight…

Q: Immunoglobulin A (a) recognizes pathogen-associated molecular patterns (b) binds with NK cells (c)…

A: The immune system of the body protects the individual from the attack of external pathogens. The…

Q: Which of the following specifically refers to an effector lymphocyte?a) B cellb) CD8 T cellc) CD4 T…

A: In the immune cells, lymphocytes are of two types that are B and T cells, they perform several…

Q: immunological memory is formed following a vaccination or infection and provides enhanced immune…

A: Immune cells develop from bone marrow stem cells to become various types of white blood cells.…

Q: is a mechanism of self-tolerance in which the lymphocyte will not achieve a full activation due to…

A: Lymphocyte is a kind of white blood cells present in immune system of jawed vertebrates.Lymphocytes…

Q: When a helper T cell releases interleukin-1 to stimulate other leukocytes during antigen…

A: The cells communicate through the mode of biochemical exchange. It is studied under the domain of…

Q: Choose the best answer for following question. Which of the following does not pertain to B cells?a.…

A: Immunity can be defined as the ability of an organism to fight against infections caused by a…

Q: Overcoming the carrier effect demonstrate which of the following immunological concepts:   A.…

A: The carrier effect is the finding that a secondary response to the hapten requires challenging the…

Q: Which of these statements about T lymphocytes is false? a. Saome T cells promote the activity of B…

A: Lymphocytes are types of leukocytes. There are two types lymphocytes in immune system:…

Q: Explain the mechanism by which NK cells are able to engage a highly specific antigen receptor during…

A: NK cells are produced from red bone marrow. They typically kill virus-infected cells and cancerous…

Q: Superantigens that bind to the T cell receptor CD28 stimulate T cell activation and proliferation in…

A: Superantigens bind to the TCR after adhesion to MHC Class II; there are also two sites on the TCRs…

Q: The incorrect statement about B cells in the following is: They can present both protein and…

A:

Q: Thymic corpuscles function in the development of regulatory T cells True False

A: T-cells are one of the important white blood cells of the immune system and play a central role in…

Q: CD4 markers are associated with (a) cytotoxic cells. (b) suppressor cells. (c) helper T cells. (d)…

A: The T-Cell (T lymphocyte) receptors are the antigen-specific receptors. There are two transmembrane…

Q: Based on the information provided in Figure 22.21, what would be the likely effect of a mutation…

A: Antigens are the foreign substances that enter our body to incite an immune response. Antigens are…

Q: Which of the following does not pertain to B cells?a. have passed through the thymusb. have specific…

A: Immune system comprises innate and acquired immunity. Innate immunity consists of a physical barrier…

Q: To become a fully activated, antibody-secreting cell, B cells usually need: a. to encounter an…

A:

Q: Describe a mechanism by which an antigen can enter the lymph node and make contact with the B-cell…

A: The response of B-cell includes two events that take place in different regions and at different…

Q: Match the term with its complement. T-cell receptor 8-chain gene CD3 complex CD4 beta-2…

A: Major Histocompatibility Complex (MHC) MHC is the group of genes encoding for specufuc proteins that…

Q: Explain the process of B cell clonal selection (remember to mention the cells originated in this…

A: Immune cells are the defense cells that protect the body from infective agents. The cells of the…

Q: These two cells destroy an infected cell by releasing chemicals that cause apoptosis. a. NK cell and…

A: A series of certain molecular reactions might cause the death of a biological cell. This phenomenon…

Q: Determine which statements are true about cytotoxic T-cells end out death vesicles that target and…

A: The term immunity is known as the capability of higher organisms to resist the harmful microbes…

Q: Define the following terms:a. T cellsb. B cellsc. cellular immunityd. humoral immunitye.…

A: Step 1 Hello. Since you have asked multiple questions, we will solve the first question for you. If…

Q: explain in detail how a B cell gets activated (clonal selection and proliferation) How are T helper…

A: * Two types of immune response can be seen . They are primary response  Secondary response *…

Q: TRUE OR FALSE? NK cells and CD8 T cells can both induce apoptosis of host cells infected with an…

A: BASIC INFORMATION APOPTOSIS  It is called programmed cell death  The process is important because…

Q: In humans, B cells mature in the and T cells mature in the.a. GALT, liver b. bursa, thymus c. bone…

A: White blood cells (WBCs) play an important role in defending the body against antigens, like…

Q: How may B cells be activated? Select all that apply. Select one or more: a. Crosslinking of BCRS and…

A: How may B cells be activated?

Q: Which of of the following is NOT typical of B-cells? High numbers circulating in the blood Matures…

A: Introduction B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte…

Q: A B cells B. Peri-arteriolar lymphoid sheath e. Antigen-presenting cells, e.g., macrophages D.…

A: 17.Answer--- correct option is D        Vascular sinus

Q: Which of the following statements regarding B cell development is correct? a- Functional mature b…

A: * B cells are responsible for humoral immunity component of adaptive immune system which produces…

Q: Centrocytes which have successfully taken up and processed antigen from follicular dendritic cells…

A: Follicular dendritic cells (FDCs) are stromal cells in primary follicles also secondary and tertiary…

Q: Phagocytes

A: Introduction :- B - Lymphocytes are part of the immune system and develop from stem cells in the…

Q: Which of the following cell types is unable to interact with naive T cells and induce their…

A: Those cells of the immune system that target specific antigens are T cells. The origin of these…

Q: Which of these statements best demonstrates the difference between the action of B cells and T cells…

A: B cells secrete antibodies that contribute to tissue injury via multiple mechanisms. In addition, B…

Q: Describe the process by which a B cell possessing a particular antigen receptor is expanded into a…

A: In immunology, the B cells are the antibody producing cell which is a part of the lymphocytes. The…

Q: True/False: Unlike innate immune responses, adaptive immune responses are initiated in secondary…

A: Immune system is a very important system which plays an important role in eliminating foreign…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.