4.1) What phasing method was most likely used to solve the free protein structure? Give both the acronym and the full name of the method. 4.2) The SeMet datasets were measured using the same crystal. In which order were they measured? What is your reasoning? 4.3) Which structure has the largest total number of refined atomic parameters? How many total refined atomic parameters does it have? 4.4) Which structure is the most reliable, according to geometric parameters. What is your reasoning? Some datasets have much higher I/sig (I) than others. What is the most likely reason for this? 4.6) Which refined structure has the most mobile atoms? What is your reasoning