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TLS Online TPP Program

#Question id: 34927

Which statements are true about informal clades introduced in APG IV?

#XL - R Botany
  1. APG IV coined "superrosids" and "superasterids"
  2. These groups include orders beyond classical rosids and asterids
  3. They replaced formal ranks like classes
  4. They apply only at family level
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TLS Online TPP Program

#Question id: 1738

#XL - Q Biochemistry

T-cell help for antibody production:
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: