Oxygen binding and hemoglobin structure a team of biochemists uses genetic engineering to modify the interface region between hemoglobin subunits. the resulting hemoglobin variants exist in solution primarily as αβ dimers (few, if any, α2β2 tetramers form). are these variants likely to bind oxygen more weakly or more tightly? explain your answer.

2h2s + 3o2 2so2 + 2h2o which option gives the correct mole ratios? h2s: so2 = 2: 2 and o2: h2o = 3: 2 h2s: so2 = 2: 3 and o2: h2o = 3: 2 h2s: so2 = 4: 4 and o2: h2o = 5: 4 h2s: so2 = 4: 6 and o2: h2o = 4: 4

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?