#Question id: 1293
#Unit 4. Cell Communication and Cell Signaling
NCAMs, a group of cell-adhesion proteins belonging to the Ig superfamily. Which of the following is not a property of NCAM?
#Question id: 4708
#Unit 11. Evolution and Behavior
The following questions refer to the figure below, which shows an outcrop of sedimentary rock whose strata are labeled A-D. If x indicates the fossils of two closely related species, neither of which is extinct, then their remains may be found in how many of these strata?
#Question id: 1929
#Unit 4. Cell Communication and Cell Signaling
Which of the following is an example of an immune escape mechanism used by some tumor cells?
#Question id: 3692
#Unit 3. Fundamental Processes
Which of the following statement is true regarding an enzyme DNA polymerase that catalyzes the elongation of complementary DNA strand?
#Question id: 7079
#Unit 5. Developmental Biology
In xenopus, In what conditions b-catenin on target gene expression without wnt protein?