What is the name of the disease in which B and T cells are not formed, leaving an individual unable to fight infection?Multiple choice question.Severe combined immunodeficiencyInfectious mononucleosisSickle-cell diseaseAmyotrophic lateral sclerosis

A patient found to have an abnormally low number of helper T cells in her blood contracts a bacterial infection.  During the infection, which of the following is most likely NOT affected by the patient's low count of helper T cells?A.Expression of major histocompatibility complex proteins that present bacterial antigens on the membrane of infected host cellsB.Proliferation of B lymphocytes in response to the bacterial infectionC.Levels of circulating antibodies against the invading bacteriumD.Activation of apoptosis-inducing cytotoxic T cells

B cells and T cells are two types of Blank______.Multiple choice question.lymphocytesneutrophilsbasophilsmonocytes

The parts of an antigen that B and T cells recognize and mount an immune response against are called _________.ANSWERapoptosishaptensantibodiesepitopes

When the body detects a pathogen, T cells recognize antigens and destroy infected cells. B cells produce other cells that make antibodies. What type of immune response is this?A.NonspecificB.SympatheticC.SpecificD.Unsympathetic

Acquired immunodeficiency syndrome is caused by Blank______.Multiple choice question.the human immunodeficiency virusPlasmodium vivaxMycobacterium tuberculosisPneumocystis jiroveci