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TLS Online TPP Program

#Question id: 34633

Which of the following describe characteristics of syntrophy?

#XL - S Microbiology
  1. One microorganism degrades a compound only in the presence of another
  2. Methanogens consume H2 produced by fermentative bacteria
  3. It is an obligatory type of mutualism in anaerobic environments
  4. Both organisms use the same carbon source competitively
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TLS Online TPP Program

#Question id: 1739

#XL - Q Biochemistry

Cross-linking of B-cell surface receptors:
TLS Online TPP Program

#Question id: 1740

#XL - Q Biochemistry

Activation of resting B-cells by T-helper cells depends directly upon costimulatory interaction between:
TLS Online TPP Program

#Question id: 1741

#XL - Q Biochemistry

B-cells as distinct from T-cells:
TLS Online TPP Program

#Question id: 1742

#XL - Q Biochemistry

The T-cell receptor link to MHC–peptide is enhanced by interaction between MHC class II on the antigen-presenting cells with the following molecule on the T-cell:
TLS Online TPP Program

#Question id: 1743

#XL - Q Biochemistry

The main costimulatory signal for activation of resting T-cells is provided by ligation of:
TLS Online TPP Program

#Question id: 1744

#XL - Q Biochemistry

Which of the following events occurs earliest in T-cell signaling?