TLS Online TPP Program

#Question id: 16957


the immune system can be summarized as follows. Which is not correct for immune system?

#Unit 4. Cell Communication and Cell Signaling
  1. A cell can become more or less susceptible to the actions of a ligand by increasing (up-regulating) or decreasing (down[1]regulating) the expression of the receptor for that li
  2. Ligand binding to the receptor induces a molecular change in the receptor. This change may be in the form of a conformational alteration in the receptor, receptor dimerization or clustering, a change in the receptor’s location in the membrane, or a covalent modification.
  3. a cell must not receive more than one signal through more than one receptor in order to effect a particular outcome.
  4. Integration of all the signals received by a cell occurs at the molecular level inside the recipient cell.
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TLS Online TPP Program

#Question id: 843

#Unit 1. Molecules and their Interaction Relevant to Biology

_______ enzymes that catalyze isomerization reactions in folding pathways of some proteins.

TLS Online TPP Program

#Question id: 844

#Unit 1. Molecules and their Interaction Relevant to Biology

It is a given set of conditions that are required  for the maintenance of the active set of cellular proteins

TLS Online TPP Program

#Question id: 846

#Unit 1. Molecules and their Interaction Relevant to Biology

The maintenance of the steady-state collection of active cellular proteins required under a particular set of conditions, called ______.

TLS Online TPP Program

#Question id: 849

#Unit 1. Molecules and their Interaction Relevant to Biology

The rigidity of the peptide unit and the restricted set of allowed phi and psi angles limits the number of structures accessible to the unfolded form sufficiently to allow:-

TLS Online TPP Program

#Question id: 850

#Unit 1. Molecules and their Interaction Relevant to Biology

The experimental inverse of protein structure prediction, has provided insights into protein folding and stability. Protein design attempts to construct an amino acid sequence that will form a structure such as a sandwich of β sheets or a bundle of α helices;

TLS Online TPP Program

#Question id: 851

#Unit 1. Molecules and their Interaction Relevant to Biology

Methods is the Rosetta program, formulated by David Baker. To satisfy the program’s computational needs, a volunteer network of ∼100,000 computers, known as Rosetta@home, provides the 500,000 or so hours of processing time required to generate a structure;