Hiring manager first set up the phone call and primed me for a coding assignment (python). Next I was brought in for a day of interviews (one on one). Most interviewers asked behavioural questions to see how I handle situations, disagreements, authority, ... others asked technical population genetic questions or molecular biology questions about their microarray chip. They (interviewer and question) seemed reasonable, i.e. it was a normal conversation. I can't know everything, and they shared relevant missing information to help the conversation move forward. Not sure if I was expected to know everything about everything, but I do not pretend to. One of their interviewers missed the meeting and took over another interview slot. Not sure if this is an interview strategy. Posed simple problems/puzzles. Simple is defined here, as given basic knowledge of a process or concept, simple questioning, anyone can solve the same. For the first question I was not a master of certain way of thinking, so for me the problem was not straight forward. The second problem/puzzle was extremely simple, but was poorly explained and the interviewer was incapable of staying silent and allowing me to process the question. Perhaps distraction is part of the interviewing strategy.