I took him for LS4. Hands down the worst professor I have had at UCLA. He does not teach what is relevant to his exams, his lectures have no slides, he just fumbles with the book and sloppy drawings on the whiteboard. His newly adopted Mastering Genetics is a huge hassle and a waste of time. I did well on his first midterm only because I was good at probability from taking 3C, but the 2nd and 3rd have been a nightmare. Do not take him. You will want to shoot yourself in the foot.