ow does clonal selection hypothesis relate to autoimmune responses?

Q: The first exposure of a person to an allergen results in the production of the IgE class of immut…

A: In the immune response, mast cells are essential, especially during allergic responses. During a…

Q: What is the basis of immunological memory?

A: Definition :- Immunological memory refers to the ability of B and T cells to produce long - lived…

Q: 2. A 65-year-old man has a carcinoma. Study of the neoplasm shows absence of class I MHC molecules…

A: Introduction:-  Normal cells for express MHC 1 on them which helps in showing self tolerance to the…

Q: The first cell type active in the innate response is usually a(n)       A) phagocyte.…

A: The innate immune system is the first line of defence in the body.

Q: For some time there has been evidence that the Bacille Calmette-Guérin (BCG) vaccine provides…

A: The vaccine shows its response by acting on the immune system. BCG or bacilli Calmette-Guerin, is a…

Q: 8. Clonal Selection Hypothesis is the most accepted theory for how immune cells respond to specific…

A: 8. Clonal Selection Hypothesis is the most accepted theory for how immune cells respond to specific…

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Q: What is herd immunity? How does it protect us against illnesses?

A: Herd immunity is a concept that describes the resistance to the spread of a disease within a…

Q: What are the functions of CD4 and CD8 proteins on the surface of T cells?

A: T cells are the lymphocytes mainly responsible for the cell-mediated immune response of adaptive…

Q: A patient has contracted an upper respiratory infection caused by a virus. Her initial adaptive…

A: Immunity is the body’s ability to resist and eliminate the potential harmful foreign invaders to…

Q: What factors lead to a comprised immune system with HIV? Group of answer choices A)High viral load…

A: HIV (Human Immunodeficiency Virus) is a virus that attacks the immune system. (The immune system…

Q: How Do Nonspecific Defenses Function?

A: Answer - Nonspecific Defenses include all the chemical or physical barriers of innate immune system.…

Q: Distinguish between nonspecific defense and adaptive immunity?

A: Difference between innate immunity and adaptive immunity- Innate immunity is present at birth while…

Q: What is B cell selection?

A: B Cell Selection: B Cells are the immunogenic cells, which are a type of lymphocytes or white blood…

Q: What is innate (nonspecific) defense?

A: Biologists categorized the human immune system into two groups namely innate defenses and adaptive…

Q: In clonal selection, “who” does the selecting? What is being selected?

A: Immunology is an important branch of biology which include the study of immunity of different…

Q: The adaptive immune system uses multiple strategies to generate diversity in our ability to mount…

A: Adaptive immunity is made up of two main components: T cells and B cells. An immune system that…

Q: What is clonal selection hypothesis and use the autoimmune response and immunological memory to…

A: Clone selection hypothesis explains that there are numerous lymphocytes in the body and each of them…

Q: ic T cells can kill virus-infected cells. ic T cells respond to antigen bound to MHC class I…

A: T lymphocytes are a type of lymphocyte. T cells are one of the immune system's most important white…

Q: Howdo positive selection and negative selection contribute to thedevelopment of tolerance in T…

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

Q: Where is the CD4 receptor?  What is it’s role in the immune response? (provide details – innate vs…

A: The human immune system is made up of the ancient innate immune system that originated from…

Q: tion. A) They release histamine in response to allergens. B) They release perforins to poke holes in…

A: There are two types of immunity in the body first is the humoral immunity which works by the action…

Q: How do foreignness, size, and complexity contribute to antigenicity?

A: An antigen can be defined as a foreign substance or a toxic material that stimulates an immune…

Q: How does a single MHC protein present many differentpeptides to T cells?

A: To identify foreign substance or infectious agents a group of cell surface proteins plays vital role…

Q: Which of the following mechanisms does HIV use to evade detection by immune responses from T cells…

A: HIV stands for Human Immunodeficiency Virus. It is a retrovirus that infects human immune cells,…

Q: What kind of cell carries an IgM antibody? a)Mast cell b) B cells c)Helper T cell d) Killer T cell

A: Hi! Thank you for the question. As you have posted multiple questions, I will be answering the first…

Q: What are lymphocyte clones? What is the differencebetween positive and negative lymphocyte…

A: The term ‘Immunity’ defines the capability of multicellular organisms that help them to resist…

Q: Of the following, which should NOT occur in order to facilitate T-cell selection in the thymus?…

A: T-cells are the part of immune system that kills the foreign pathogen in specific manner. It is…

Q: In vertebrates, complement activation generally involves a pathogen recognition step followed by a…

A: Complement System --- Complement system is a part of immune system known as innate immune system…

Q: Which of the choices is required to activate a helper T cell, which in turn can stimulate antibody…

A: Major histocompatibility complex contains a set of polymorphic genes which codes for cell surface…

Q: When an antigen complex is bound to a Class I MHC molecule, it can stimulate a A) B cell. B) plasma…

A: MHC or major histocompatibility complex molecules are glycoproteins which are encoded in a large…

Q: What is the purpose of negative selection of B and T cells? Explain in one sentence.

A: Negative selection is when various cell types are removed, leaving the cell type which is of…

Q: why is clonal deletion so important? how does it differ from clonal selection

A: Immunology is the branch of medical science that deals with the study of the immune system and…

Q: Which of the following correctly states theorder of events in humoral immunity? Let1 = antigen…

A: Multi-cellular organisms' capacity to withstand dangerous germs is known as immunity. Immunity…

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.