Nitrogenase enzyme complex catalyzes the molecular nitrogen fixation, this enzyme not only fixes nitrogen but also perform other reactions given below. Which one is not performed by nitrogenase?

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#Question id: 1632

#Unit 4. Cell Communication and Cell Signaling

A single plasma cell secretes:

TLS Online TPP Program

#Question id: 1633

#Unit 4. Cell Communication and Cell Signaling

Immunological memory can be transferred experimentally by:

TLS Online TPP Program

#Question id: 1634

#Unit 4. Cell Communication and Cell Signaling

What is the main reason an experimental animal treated with X-rays can act as a living test tube for lymphocyte transfer experiments?

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#Question id: 1635

#Unit 4. Cell Communication and Cell Signaling

What is immunological unresponsiveness to self-antigens called?

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#Question id: 1636

#Unit 4. Cell Communication and Cell Signaling

Edward Jenner vaccinated against smallpox using:

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#Question id: 1637

#Unit 4. Cell Communication and Cell Signaling

Protective antibodies against infectious agents are often: