Compare and contrast the origin and roles of B cells and T cells

What will be an ideal response?


Answer: Both B cells and T cells are called lymphocytes. They both originate in the bone marrow. However B cells mature in the bone marrow while T cells mature in the thymus. B cells are precursors of antibody-producing plasma cells; T cells are not. T-cells directly interact with and can lysis infected human cells, while B cells produce antibodies and do not directly kill infected cells.

Biology & Microbiology

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It is estimated that anammox and the anammox reaction may contribute as much as 20% to the cycling of nitrogen in the world's oceans.

Answer the following statement true (T) or false (F)

Biology & Microbiology

_______ refers to the combination of alleles that an individual has for a gene.

a) Polygenic inheritance b) Codominance c) Genotype d) Phenotype

Biology & Microbiology

Koch's postulates are criteria used to establish that

A. microbes are found on dust particles. B. life-forms can only arise from preexisting life-forms. C. a specific microbe is the cause of a specific disease. D. microbes can be used to clean up toxic spills. E. a specific microbe should be classified in a specific kingdom.

Biology & Microbiology

Animals with closed circulatory systems are more successful than animals with open circulatory systems.

Answer the following statement true (T) or false (F)

Biology & Microbiology