#Question id: 887
#Unit 1. Molecules and their Interaction Relevant to Biology
Polypeptides fold rapidly by a stepwise process, how does the polypeptide chain arrive at its native conformation?
#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: 10499
#Unit 6. System Physiology – Plant
Stomata from intact, attached leaves of Arabidopsis illuminated with blue, red, and green light in a growth chamber, increases and decreases their aperture in response to light.
Find the CORRECT statements from the above graph.
i) Stomatal aperture increases when the green light is turned off, and close when the green light is turned on again
ii) Stomata from the phototropin-less double mutant phot1/phot2 respond to blue light and open further when green light is turned off
iii) stomata from the zeaxanthin less mutant npq1 do not respond to blue light and least effect to opening of the stomata further when green light is turned off
iv) the npq1 mutant and phot1/phot2 double mutant response indicate that the green reversal of the blue-light response requires zeaxanthin but also phototropin
#Question id: 11527
#Unit 6. System Physiology – Plant
Coleoptiles are very sensitive to light, if illuminated on one side with a short pulse of dim blue light, it will
#Question id: 22960
#Unit 7. System Physiology – Animal