#Question id: 19702
#Unit 13. Methods in Biology
#Question id: 728
#Unit 1. Molecules and their Interaction Relevant to Biology
Match the following tile peaks with corresponding circular dichroism spectra
|
A. Alpha helix |
I. negative bands at 222 nm and 208 nm and a positive one at 190 nm. |
|
B. Beta sheet |
II. negative band at 218 nm and a positive one at 196 nm. |
|
C. Random coil |
III. positive band at 212 nm and a negative one around 195 nm. |
#Question id: 4987
#Unit 11. Evolution and Behavior
A female fly, full of fertilized eggs, is swept by high winds to an island far out to sea. She is the first fly to arrive on this island, and the only fly to arrive in this way. Thousands of years later, her numerous offspring occupy the island, but none of them resembles her. There are, instead, several species each of which eats only a certain type of food. None of the species can fly, for their flight wings are absent, and their balancing organs (i.e., halteres) are now used in courtship displays. The male members of each species bear modified halteres that are unique in appearance to their species. Females bear vestigial halteres. The ranges of all of the daughter species overlap.In each fly species, the entire body segment that gave rise to the original flight wings is missing. The mutation(s) that led to the flightless condition could have
#Question id: 15447
#Unit 4. Cell Communication and Cell Signaling
#Question id: 15981
#Unit 12. Applied Biology