In homologous recombination in E. coli, the protein that assembles into long, helical filaments that coat a region of DNA is:

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#Question id: 1758

#XL - Q Biochemistry

The specificity of antibody secreted by a B-cell may not be the same as that of the surface Ig of the clonal parent because of:

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#Question id: 1759

#XL - Q Biochemistry

What is the major long-term source of a foreign antigen in the body?

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#Question id: 1760

#XL - Q Biochemistry

Effector memory T-cells can be distinguished from the central memory T-cells from which they arise by:

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#Question id: 1761

#XL - Q Biochemistry

Which of the following statements is TRUE of cytokines?

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#Question id: 1762

#XL - Q Biochemistry

What do Th1 cells secrete?

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#Question id: 1763

#XL - Q Biochemistry

Which of the following cytokines can mediate release of acute phase proteins from the liver?