A) What is/are the main differences between the classic Staudinger reduction and the Bertozzi Staudinger ligation? B) Extra credit (10 pts); If you wanted to modify a cell receptor with a fluorophore using the Bertozzi Staudinger ligation, how would you go about doing it, reasoning by analogy to one of the examples shown in the module? (Correct/mostly-reasonable answers will get 10 points; "on the right track but with some key misconceptions" will get you 5 pts)