#Question id: 4684
#Unit 3. Fundamental Processes
The depicted region contains two genes (cI and cro) and three promoters (PR, PL, and PRM), these promoters are direct the transcription such as;
a) PR and PL are is a weak promoter and only directs efficient transcription when an activator is bound just upstream
b) PR and PL are strong, constitutive promoters, they bind RNA polymerase efficiently and direct transcription without help from an activator
c) PRM, is a weak promoter and only directs efficient transcription when an activator is bound just upstream
d) PRM are strong, constitutive promoters, they bind RNA polymerase efficiently and direct transcription without help from an activator
Which of the following from the above combination is correct ?
#Question id: 10366
#Unit 6. System Physiology – Plant
Cyanobacteria can fixes nitrogen in an anaerobic conditions. Which of the following statements about heterocyst which is specialized cell of blue-green algae is incorrect?
#Question id: 12928
#Unit 13. Methods in Biology
#Question id: 4628
#Unit 11. Evolution and Behavior
Which group is composed entirely of individuals who maintained that species are fixed (i.e., unchanging)?
A) Linnaeus
B) Lyell
C) Darwin
D) Aristotle
E) Cuvier
#Question id: 23039
#Unit 12. Applied Biology