biology review

Can you solve this DAT Biology natural selection question? This question tests an important evolutionary concept that appears frequently on the DAT and OAT. Try the problem before looking at the explanation on the second slide. More DAT and OAT preparation resources from Dr. Jim Romano...

Can you solve this DAT Biology natural selection question? This question tests an important evolutionary concept that appears frequently on the DAT and OAT. Try the problem before looking at the explanation on the second slide. More DAT and OAT preparation resources from Dr. Jim...

The reticuloendothelial system (mononuclear phagocyte system) is a high-yield Biology topic that DAT and OAT students are expected to understand rather than simply memorize. In this lesson, Dr. Jim Romano explains: The reticuloendothelial (mononuclear phagocyte) system Macrophages and their...

The reticuloendothelial system (mononuclear phagocyte system) is a high-yield Biology topic that DAT and OAT students are expected to understand rather than simply memorize. In this lesson, Dr. Jim Romano explains: The reticuloendothelial (mononuclear phagocyte) system Macrophages and their...

Understanding the differences between arteries, veins, and capillaries is essential for success on the DAT and OAT Biology sections. In this video, Dr. Jim Romano explains: Arteries vs. veins Capillary structure and function Blood flow through the circulatory system High-yield DAT & OAT...

One of the most frequently tested DAT Biology topics is understanding the differences between DNA and RNA. Key points to remember: • DNA contains deoxyribose sugar, while RNA contains ribose sugar. • DNA is typically double-stranded; RNA is usually single-stranded. • DNA uses thymine (T)...

Many DAT biology questions test whether students truly understand the characteristics of blood cells instead of simply memorizing definitions. If you’re preparing for the DAT or OAT, the DAT Destroyer and Math Destroyer along with the Dr. Jim Romano Biology Review Book are core resources used...

Students often memorize terms like Okazaki fragments without understanding why they form. Focus on replication direction and DNA polymerase activity at the replication fork. The lagging strand is synthesized discontinuously, so multiple RNA primers are required. DAT Destroyer DAT Destroyer...

Dr. Romano’s Dynamite Biology Review is now complete. These biology notes are the result of more than 35 years of Biology and Biochemistry teaching experience and have been made specifically for the DAT and OAT. The goal was to eliminate wasted study time and help students focus on the...

If you’re preparing for the DAT or OAT, the DAT Destroyer and Math Destroyer are the core books used in Dr. Jim Romano’s DAT preparation courses, both online and in person. DAT Destroyer DAT Destroyer 2026 — Complete DAT Science Prep System | Dr. Jim Romano Math Destroyer 2026 Math Destroyer...

In this video, Dr. Jim Romano explains the reticuloendothelial system and how it is tested on the DAT and OAT. The focus is on macrophages, phagocytosis, and immune system function—areas that commonly confuse students in DAT Biology. This explanation is useful for students using the DAT...

These hormone associations are high-yield DAT Biology and absolutely fair game on the exam. If you know these concepts cold and pair them with the 2026 DAT Destroyer, you put yourself in a strong position to break into the 500+ range under the new DAT scoring system. 📘 Dr. Romano’s Biology...

Here’s a quick DAT Biology concept that shows up all the time — the difference between homodonts and heterodonts. 🦈 Dr. Jim Romano, creator of the DAT Destroyer, breaks it down in under a minute with his signature clarity and speed. 📘 Study Smart. Study Destroyer. 🧠 Trusted by pre-dental...