Upon centrifugation of an antibody screen procedure done by the gel system, the red blood cell agglutinates are dispersed throughout the gel column with a few agglutinates at the bottom of the microtubes.

This reaction should be graded as a:

A. 4+
B. 3+
C. 2+
D. 1+
E. Negative

In the example of adrenaline signaling, which steps represent an amplification of the signal? question 1 choiceschoice a., activated receptor activates g proteins, g protein binding by gtp, cyclic amp activation of protein kinase achoice b., activated receptor activates g proteins, activated adenylyl cyclase produces camp, active protein kinase a phosphorylates target proteinschoice c., receptor signal binding, activated receptor activates g proteins, activated adenylyl cyclase producing campchoice d., receptor signal binding, activated adenylyl cyclase producing camp, active protein kinase a phosphorylating target proteins