Mitochondria are thought to be the descendants of certain alpha -proteobacteria. They are, however, no longer able to lead independent lives because most

genes originally present on their chromosome have moved to the nuclear genome. Which phenomenon accounts for the movement of these genes?

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#Question id: 1751

#XL - Q Biochemistry

Which of the following is characteristically produced by the Th2 CD4 cells which provide help for antibody production, but not by Th1 cells?

TLS Online TPP Program

#Question id: 1752

#XL - Q Biochemistry

Dendritic cells can be driven from a resting state to an activated state by the T-cell surface molecule:

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#Question id: 1753

#XL - Q Biochemistry

In the germinal center, B-cells become memory cells under the influence of:

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#Question id: 1754

#XL - Q Biochemistry

High affinity B-cell clones in mammals are usually generated by:

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#Question id: 1755

#XL - Q Biochemistry

Prior to class switching, B-cells express:

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#Question id: 1756

#XL - Q Biochemistry

Which of the following is the cytokine that is most involved in the class switch to IgE production?