Howdo positive selection and negative selection contribute to thedevelopment of tolerance in T cells?

Q: What are the components of innate immunity?

A: The innate immune system comprises of the barriers that aids to keep viruses, bacteria and other…

Q: What is innate immunity? Also explain its four types of barriers.

A: The immune system protects the body against pathogens and cancer cells. Immunity can be divided into…

Q: What distinguishes constitutive resistance from an induced response?  What is the difference between…

A: Defense against an infectious pathogen is a complex mechanism that includes both constitutive…

Q: How Do Nonspecific Defenses Function?

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

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 Lubeck, Germany, in 1930, a group of 251 infants was accidentally administered a tainted vaccine…

A: Innate  immune system is the immune system which is present in an individual from birth .

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: It's the first day of university exams and Sarah has woken up with a sore throat, headache, muscle…

A: Viral infection-The infection which is caused by the virus is called viral infection. There are…

Q: Select the type of T cell that plays a role in diminshing an immune response:

A: T cell or T lymphocyte, is a vital component of the immune system. When it comes to protecting the…

Q: What is the relationship and differences between receptor-mediated endocytosis and TLR in relation…

A: The first-line of defense mechanism is known as innate immunity, and the immune cell-mediated…

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.