cell communication homework Name Which of the following pathways relies on eleva

Question

cell communication homework Name Which of the following pathways relies on elevation of -catenin to transduce its signals a. Receptor tyrosine kinase signaling b. Wnt signaling c. Hedgehog signaling d, Receptor serine/threonine kinases, such as TGF- family receptors e. G protein-linked receptors sitol Which of the following is released into the cytoplasm as a response to elevation of ino trisphosphate (IP3)? a. b. c. d. e. Diacylglycerol (DAG) Calcium ions Cubitus interruptus (Ci) protein Smads None of the above Cells respond to Wnt signaling using which type of receptor? a. Frizzled b. Smoothened c. FGF receptor d. Steroid hormone receptor e. None of the above

Explanation / Answer

1.
Option B is correct.
The canonical Wnt pathway triggers the accumulation of beta-catenin in the cytosol and its translocation into the nucleus.

2.
Option B is correct.
Elevation of intracellular inositol trisphosphate releases Calcium ions into the cytoplasm.

3.
Option A is correct.
Wnt signaling occurs when a Wnt protein binds to the N-terminal extra-cellular cysteine-rich domain of a Frizzled receptor.

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