#Question id: 12716
#Unit 6. System Physiology – Plant
#Question id: 4686
#Unit 3. Fundamental Processes
Bacteriophage λ, has two mode of life cycle; lytic and lysogenic. In the lytic growth
a) a single Cro dimer is bound to OR3; this site overlaps PRM and so Cro represses that promoter
b) Repressor bound at OR1 and OR2 blocks RNA polymerase binding at PR, repressing transcription from that promoter
c) PR and PL binds RNA polymerase and directs transcription of lytic genes
d) During lytic, PRM is on while PR (and PL) are off
Find the correct combinations of lytic growth.
#Question id: 13141
#Unit 10. Ecological Principles
Five similar populations of a herbaceous annual plant are monitored for three years; then, the numbers of individuals in populations I-IV are increased by an experimenter. Subsequent changes in the sizes of all the populations are shown in the graph below.
If size distributions of individuals do not vary among these populations, which of the following relationships best illustrates the occurrence of population regulation?
#Question id: 33463
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 33524
#Unit 2. Cellular Organization