The radius of first Bohr orbit is , then de-Broglie wavelength of electron in 3rd orbit is nearly

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#Question id: 1734

#XL - Q Biochemistry

The nuclear AP-1 site responsible for 90% of IL-2 enhancer activity binds:

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#Question id: 1735

#XL - Q Biochemistry

In the immunological synapse:

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#Question id: 1736

#XL - Q Biochemistry

Lipopolysaccharide (LPS) from Gram-negative bacteria is:

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#Question id: 1737

#XL - Q Biochemistry

The carrier T-cell epitope on a thymus-dependent antigen:

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#Question id: 1738

#XL - Q Biochemistry

T-cell help for antibody production:

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#Question id: 1739

#XL - Q Biochemistry

Cross-linking of B-cell surface receptors: