#Question id: 3891
#Unit 3. Fundamental Processes
Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs. In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?
#Question id: 1574
#Unit 4. Cell Communication and Cell Signaling
A bacterium entering the body through a small cut in the skin will do which of the following?
#Question id: 23989
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 4984
#Unit 11. Evolution and Behavior
A hypothetical mutation in a squirrel population produces organisms with eight legs rather than four. Further, these mutant squirrels survive, successfully invade new habitats, and eventually give rise to a new species. The initial event, giving rise to extra legs, would be a good example of
#Question id: 1268
#Unit 4. Cell Communication and Cell Signaling
The collagen triple-helix domain
a. is rich in glycine. b. is rich in proline.
c. is rich in hydroxyproline. d. is an alpha helix.