Every time, without fail, when Lalo comes up in conversation, he's described as a nice guy. Unfortunately, and everyone agrees, being nice does not teach genetics. His lectures are inarticulate, disorganized, and confusing, often making mistakes and having to correct them. First B- after straight A's. Class could've been interesting. Lost potential

Take genetics/get an overview of what genetics is before taking his class. His lectures aren't only confusing but he also give out many misinformations. Go to office hours because students will correct him in office hours but he won't notify all the students that he made corrections. The WORST final ever because he cannot teach.

He's a sweet guy but a horrible lecturer. He has an awful teaching style and doesn't include important information that ends up on the exam; I basically taught the second half of the class to myself. There were numerous errors on questions for both the second midterm as well as the final. He doesn't even know how to put grades into Canvas correctly

Seriously the worst teacher I have ever had in my life. He doesn't even know what he is saying in the lectures, information is always wrong, and he gets confused about his own content. He always grades everything wrong and there are always answers that he says are correct that are not correct and he has to go back and change them. DO NOT TAKE HIM.

DO NOT TAKE HIM!!! He is the worst teacher I have had at UCSB thus far and wish I would have read the reviews on here before

I feel really frustrated by Lalo and his teaching style. His lectures are very hard to follow and he ALWAYS fails to include important information/ material that is included on the tests, and instead he chooses to breeze over or spend no time reviewing. Going to lecture sometimes feels counterproductive as I feel more confused after the fact.

Lalo literally has a heart of gold. He's one of the few professors that show up every lecture with a smile on his face and genuinely cares so much about his students. Taking bio in the summer runs FAST but keep up with the lectures slides and practice exams and iclicker questions. Test are hard but fair if you study well.

I think that Lalo did a good job lecturing but he would often spend too much time on topics leading to him having to speedrun biotech on the last day. His test questions were also kind of hard as wording was vague. The TA didn't even know the answer. I also wish that there was a greater emphasis on the text book. Just review the slides weekly.

Incredibly hard test giver. Every class I've had with him has been much, much harder compared to many other professors that teach the same classes (MCDB 1A and 101A). Avoid him if you can, the other profs that offer these courses are way more forgiving with the same material.

Lalo definitely cares about his students, and is an all-around friendly guy! He does tend to speak fast though, so I preferred to watch his recorded lectures. His tests are fair, and going to office hours definitely helped prepare me more for them.

This class is definitely challenging regardless of the professor. His exams are hard and you need to study a lot over a long period of time to do well. Do the reader sets and ask questions as soon as you have them because they will add up. Go to office hours and clarify things you need asap. If you do these things you'll do well in the class.

Definitely a teacher that gets too much flak. Having taken MCDB 1A, 1B and now 101A, he has significantly improved clarity and seemed to readjust back to teaching live lectures. Tests are pretty fair, similar enough to his practice exams even if the concepts can get quite confusing. Keep up with the material and its an extremely doable class.