A topic in biology that many students find challenging (and is known to appear on the DAT) is the number of chromosomes and chromatids present during the various stages of meiosis and mitosis in eukaryotes.
OAT test dates are offered year-round through the Prometric test centers, but I recommend registering early – seats tend to fill up quickly and it’s common for the next available seat to be up to 2 months away!
In an Electrophilic Aromatic Substitution (EAS) reaction, the benzene ring acts as a nucleophile that attacks an electrophile. The reaction mechanism below outlines the flow of electrons that occurs during all EAS reactions.
One of the toughest parts of organic chemistry is understanding the mechanisms behind reactions. Immediately, many pre-dental students want to know if they have to go through the same torture as they did in their college organic chemistry classes to memorize these complex reactions.
Here’s a general chemistry concept that frequently appears on the DAT. We’re talking about intermolecular forces, not to be confused with intRAmolecular forces, which bind the atoms within a single particle (i.e. covalent bonds, metallic bonds, ionic bonds).
Digestive enzymes is a topic frequently tested on the Biology section of the DAT and OAT. Knowing the function of key enzymes, where they are produced, and how they are regulated will translate to easy points come test day.