#Question id: 614
#Unit 1. Molecules and their Interaction Relevant to Biology
What type of inhibition is indicated by the data graphed below?
#Question id: 7030
#Unit 5. Developmental Biology
Organizer:
#Question id: 11319
#Unit 10. Ecological Principles
Which of the following plant defensive compounds is found at high levels in oak leaves?
#Question id: 4957
#Unit 11. Evolution and Behavior
How many half-lives should have elapsed if 6.25% of the parent isotope remains in a fossil at the time of analysis?
#Question id: 721
#Unit 1. Molecules and their Interaction Relevant to Biology
Addition of urea leads to a two-state transition between α-helix and random coil conformation. It has been observed that [θ]222 of the polypeptide is -11000 deg cm2 dmol-1 in the presence of 6M urea. Initially it was observed that tile values of mean residue ellipticity at 220 nm ([θ]220) are -36000, and +4000 deg cm2 dmol-1 for α-helix, and random coil conformations of this polypeptide. The percentage of the polypeptide in α-helix conformation is: