48. Which one of the following graphs represents the relative expression of proteins of Wnt-activated signaling cascades involved during development of an embryo? The relative expression of proteins […]
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Cell-Cell Communication
Non-Canonical Wnt/PCP Pathway: Key Inducer of Cytoskeletal Changes in Early Development
47. Activation of the Wnt signal transduction pathway is extremely important during early development. Of the various pathways, which one of the following is most likely to induce cytoskeletal changes, […]
Cell-Cell Communication
Signaling Processes NOT Involved in Cellular Movement or Cytoskeletal Changes: Comprehensive Overview
46. Of the following signaling processes which one is NOT involved in cellular movement or cytoskeletal changes? Of the signaling processes involved in cellular movement […]
Cell-Cell Communication
Role of Rho GTPase in Modulating Actin Cytoskeleton in HeLa Cells: Mechanisms and Significance
45. Intracellular transport and cytoskeletal organization of a cell is regulated by nucleotide exchange of different small molecular weight GTPases of Ras super family. Overexpression of which of the following […]
Cell-Cell Communication
Non-Canonical Wnt Signaling Pathway: Role of RhoA and PLC in Cell Polarity and Calcium Signaling
Which of the following is most likely to be activated in the non-canonical Wnt pathway? (1) Disheveled and GSK-3. (2) RhoA and PLC. (3) GSK-3 and RhoA (4) Disheveled and […]
Cell-Cell Communication
Role of Groucho Displacement in β-Catenin Mediated Wnt Signaling Activation
In response to a Wnt signal, β-catenin enters the nucleus and binds to the LEF1/TCF proteins by displacing which one of the following proteins? (1) CBP (2) GSK3 (3) Groucho […]
Cell-Cell Communication
Hedgehog Proteins: Key Morphogens in Development and Signaling Pathways
Which one of the following is a group of signalling molecules that act as morphogens during development of an organism and its effects are mediated through the receptor Patched and […]
Cell-Cell Communication
The Crucial Role of Proteases in Collagen Remodeling and Tissue Healing
Collagens are the most abundant component of the extracellular matrix. In order to maintain normal physiological processes like wound healing, bone development, etc., which one of the following type of […]
Cell-Cell Communication
Understanding Collagen Structure: Clarifying the Composition of Its Triple Helix
39. Collagen is the most prevalent extracellular matrix protein. Which of the following is NOT true for collagen? (1) Collagen is composed of triple helix consisting of two α polypeptide […]
Cell-Cell Communication
Impact of Connexin Inhibition on Intercellular Protein Movement via Gap Junctions
38. A researcher was studying a protein ‘X’ which has been observed to move across cells when an extracellular electrical stimulus is provided. An artificial peptide ‘P’ was prepared which […]
