The processes of clonal selection and clonal expansion occur during _____. a. adaptive immune responses b. innate immune responses c. hematopoiesis d. self renewal e. immunodeficiency diseases.

Q: Which of the following immune cells are most efficient for eliminating parasitic worms? 單選: A.…

A: Eosinophils as effector cells against parasites. Following nematode infection, eosinophils gather…

Q: A T lymphocyte activated in the GALT will subsequently home to all of the following except _____.…

A: Gut associated lymphocyte tissue or GALT complex function is to form as a protective immune system…

Q: All of the following are examples of how tumors or the microenvironment in which they develop…

A: Tumor cells are able to stimulate specific adaptive immune responses. However, most frequently these…

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: Plasma cells and memory B cells differentiate most immediately from Select one: a. centrocytes b.…

A: Introduction There are two types of lymphocytes found in our immune system: T lymphocytes and B…

Q: 10. NK cells recognize and kill abnormal host cells that are: A. opsonized with IgE. B. lacking…

A: According to bartleby expert guidelines, when multiple questions are posted we are allowed to answer…

Q: Primary immunodeficiency disorders

A: Immunodeficiency: It is the absence or result of elements of the immune system such as phagocytes,…

Q: Which of the following characteristics apply to T lymphocytes?a. mature in bone marrowb. mature in…

A: A lymphocyte is a white blood cell in the immune system of vertebrates. These include natural killer…

Q: antigen presenting cells are necessary for ___ response to a foriegn antigen a. b lyphocyte b. t…

A: Innate immune responses are not specific while adaptive immune responses are specific immune…

Q: A potential cause of acquired autoimmunity is ________. a. tissue hypersensitivity b. molecular…

A: Autoimmunity can be defined as the immune response of organism against their own healthy tissues.So…

Q: ADAM33 metalloproteinase inhibitors are sometimes co-administered with anti-tumor monoclonal…

A: A metalloproteinase is also known as metalloprotease. It is a type of protease enzyme that requires…

Q: Systemic distribution of TNF-α in the blood circulation may cause _____. a. respiratory burst b.…

A: Tumor Necrosis Factor alpha (TNF alpha), is an inflammatory cytokine produced by…

Q: During the adaptive immune response, the role of helper T cells includes _____. Mark all that…

A: The adaptive immune response is the body's defense mechanism that learns and adapts to specific…

Q: Which of the following groups are not correctly matched? а. Neutrophils---antigen presenting cell b.…

A: Introduction: An immune system is a huge organization of cells and tissues that is continually…

Q: DiGeorge syndrome is a congenital disease that results in a poorly developed, nonfunctioning thymus…

A: Primary immunodeficiency are the immunodeficiency diseases which arises from the birth where as…

Q: Immune responses tailored to specific antigens involvea. T cells.b. macrophages.c. monocytes.d.…

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

Q: Antibodies are______ . a. antigen receptors c. proteins b. made only by B cells d.all of the above

A: Antibody  Antibody is the Y shaped molecules that fight with foreign objects or pathogens.

Q: A potential cause of acquired autoimmunity is________.a. tissue hypersensitivityb. molecular…

A: Autoimmunity is a condition in which a body's immune response is generated against its own tissues…

Q: An important distinction between macrophages that populate the lamina propria of the gut and the…

A: Answer is c.) do not possess signaling receptors needed for production of inflammatory cytokines.

Q: An adult who has been thymectomized will have a T-cell repertoire that _____. a. resembles a…

A: The answer is described in the next step:-

Q: Where do naïve cytotoxic T cells encounter foreign antigens and become activated cytotoxic T cells?…

A: Naive t- cells are basically T- lymphocytes that have never been exposed to antigens since their…

Q: A young woman was in a car accident and had to have her spleen removed as a consequence of its…

A: The spleen is a secondary lymphoid organ. It is also referred to as an enlarged lymph node. Spleen…

Q: When an immature dendritic cell becomes an activated dendritic cell, all of the following changes…

A: Immunity is the capability of the body to fight against foreign attack and maintain the persistence…

Q: Barriers to using pig organs in human transplantation are _____. (Select all that apply.) a. the…

A: Graft rejection is one of the major problems in xenotransplantation. It is important to understand…

Q: NK cells expressing high levels of _____ become abundant during CMV infection. a. CD56 b. HLA-E…

A: They are large granular cells. They do not have antigen receptor-like b cell and t cell instead has…

Q: B Lymphocytes typically target:   a. parasitic worms   b. bacteria   c. viruses   d. intracellular…

A: they are essential for humoral immunity they are known as memory cells plasma cells are mature B…

Q: A drug that were to inhibit the activity of T suppressor cells would lead to _______. a.…

A: Regulatory T cells (Tregs) also known as supressor t cell are a specialized subpopulation of T cells…

Q: Upon further testing, it is found that Matthew in question 4 does have normal cellular immunity.…

A: Antibody

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: Generally, in healthy individuals and in the absence of infection, a mature naive T cell that…

A: T cells are among the immune system's most essential white blood cells that play a key part in…

Q: Inflammatory cytokines a. act as opsonins. Ob. are produced only by phagocytic cells. c. facilitate…

A: Immunology is a section of biology that includes the study of molecules, cells, and organs that…

Q: 2) Hematopoietic stem cells give rise to: (Choose all that apply) а. B cells b. T cells Macrophages…

A: The stem cells that give rise to other blood cells are known as hematopoietic stem cells (HSCs).…

Q: NK cells express _____. a. receptors to recognize alterations to human cell surfaces induced by…

A: Natural killer (NK) cells are lymphocyte that descend from the very same progenitor as T and B…

Q: Helper T cells do not _________. Select one: a. secrete cytokines that stimulate clonal selection…

A: The question is asking us to identify the function that Helper T cells do not perform.

Q: Which of the following is NOT an explanation to the body's normal lack of mature lymphocytes that…

A: Lymphocytes develop in the Central lymphoid organ such as thymus and bone marrow. The main  criteria…

Q: Helper T cells produce _____________ t a. Enzymes b. Cytokines c. Antibodies d. Antigens

A: T lymphocytes (often called T cells) are one of the crucial types of lymphocytes and are a major…

Q: Macrophagesa. are large, phagocytic cells that outlive neutrophils.b. develop from mast cells.c.…

A: Innate immunity is present at birth. The response towards the foreign invaders is immediate. The…

Q: Which of the following is not a goal of inflammation? A. Deliver oxygen, nutrients, and chemical…

A: In case of inflammation that can be several signs that characterized the condition. The redness,…

Q: Memory T cells _____. (Select all that apply.) a. must all be activated in secondary lymphoid…

A: Memory T cells are antigen-specific T cells that remain long-term after an infection has been…

Q: All of the following contribute to the establishment and maintenance of long-lived memory B cells…

A: B cells are lymphocytes which are important for the adaptive immune system's humoral defense…

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.