#Question id: 7480
#General Aptitude
#Question id: 7589
#General Aptitude
#Question id: 4960
#Unit 11. Evolution and Behavior
Letʹs say that a hypothetical submersible robot was used to collect samples of sedimentary rock from the sea floor along the section illustrated. The robot moved back and forth along the transect, collecting first from site A, then site III, then site B, then site II, and lastly site D. Assuming that sedimentation has occurred at a constant rate along the transect over the past million years, rearrange the sites mentioned above on the basis of the thickness of the sediments overlying the igneous rock, from thickest to thinnest.
#Question id: 28298
#Unit 5. Developmental Biology
Which of the following PLC is activated by tyrosine kinase during egg activation?
#Question id: 1252
#Unit 4. Cell Communication and Cell Signaling
Following statements are regarding to the phosphoinositide signaling pathway.
A. Many RTKs and cytokine receptors can initiate the IP3/ DAG signaling pathway by activating phospholipase Cβ (PLCβ), a different PLC isoform.
B. Activated RTKs and cytokine receptors also can initiate another phosphoinositide pathway by binding a PI-3 kinase, thereby allowing the enzyme access to its membrane-bound phosphoinositide substrates, which then become phosphorylated at the 3 position.
C. Protein kinase B (PKB) becomes partially activated by binding to PI 3-phosphates with its PH domain.
D. Full activation of PKB requires phosphorylation by the kinase PDK1, which is also recruited to the membrane by binding to PI 3-kinase, and by a second kinase, PDK2.
Which of the following combination is incorrect?