In cellular immunity, T lymphocytes are responsible for the recognition and killing of foreign invaders. The cells are cytotoxic T lymphocytes (CTL) killer T cells both (a) and (b) None of these TRUE ANSWER : ? YOUR ANSWER : ?
The immune response to a booster vaccine is called a(n) innate response secondary response cellular response primary response TRUE ANSWER : ? YOUR ANSWER : ?
Immunological memory is due to long lived B cells that secrete a specific antibody short lived macrophage that can recognize specific pathogens long lived B cells that secrete a specific antigen short lived helper T cells that signal macrophage to divide TRUE ANSWER : ? YOUR ANSWER : ?
To elicit the best antibodies to mouse MHC I, it should be injected into a mouse of a different strain mouse of the same genetic background (strain) goat rat TRUE ANSWER : ? YOUR ANSWER : ?
Immunogenicity is not a property of antibodies is usually a property of self antigens such as eye tissue is not a property of haptens depends on the ability of the native antigen to be presented by MHC TRUE ANSWER : ? YOUR ANSWER : ?
What are the solutions prepared from weakened or dead microorganisms, viruses, or toxins that provide some immunity from diseases? Drugs Antibiotics Vaccines Histamines TRUE ANSWER : ? YOUR ANSWER : ?
If a person is vaccinated against a disease sometime in the past, which of the following is currently in your body? A very high level of antibodies against the disease antigens Memory B lymphocytes for the antigen of this disease organism The disease organism itself and antigens for the disease organism All of these TRUE ANSWER : ? YOUR ANSWER : ?
During exposure to a foreign invader, there are more __________ present in the vertebrate body than before exposure antibodies lymphocytes macrophages and antigens all of these TRUE ANSWER : ? YOUR ANSWER : ?
Antibodies bound to an invading microorganism activate the complement system via classical pathway Entner-Doudoroff pathway metabolic pathway Embden Meyerhof pathway TRUE ANSWER : ? YOUR ANSWER : ?
Polysaccharides on the surface of infecting microorganisms can also activate complement directly in the absence of antigen via the alternative pathway None of these antibody via metabolic pathway antibody via the alternative pathway TRUE ANSWER : ? YOUR ANSWER : ?