#Question id: 980
#Unit 1. Molecules and their Interaction Relevant to Biology
Which enzyme catalyzes the step in purine nucleotide biosynthesis that is the principal site of regulation for the pathway?
#Question id: 3349
#Unit 11. Evolution and Behavior
Which of these evolutionary agents is most consistent at causing populations to become better suited to their environments over the course of generations?
#Question id: 15761
#Unit 5. Developmental Biology
#Question id: 4327
#Unit 3. Fundamental Processes
What would occur if the repressor of an inducible operon were mutated so it could not bind the operator?
#Question id: 2474
#Unit 2. Cellular Organization
In cells, the gamma-tubulin ring complex is found: