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Dr. Jim Romano explains important genetics concepts for the DAT and OAT Biology sections, including inheritance patterns and probability. Watch the video and follow along as Dr. Romano works through the genetics step by step: Free DAT and OAT preparation resources from Dr. Jim Romano: Start...

Which molecules can easily pass through the cell membrane without a transporter? Consider polarity, molecular size, and lipid solubility before choosing your answer. Dr. Romano’s complete explanation is included on the second slide. Free DAT and OAT study resources: Start Your DAT and OAT...

Which molecules can easily pass through the cell membrane without a transporter? Consider polarity, molecular size, and lipid solubility before choosing your answer. Dr. Romano’s complete explanation is included on the second slide. Free DAT and OAT study resources: Start Your DAT and OAT...

🎉 LABOR DAY GIVEAWAY! We’re giving away one 2026 Destroyer book of your choice with free shipping to the U.S. or Canada! HOW TO ENTER: Visit our official Instagram giveaway post: Follow @orgomandatdestroyer Like the Instagram giveaway post Comment DAT or OAT and your planned test month on...

🎉 LABOR DAY GIVEAWAY! We’re giving away one 2026 Destroyer book of your choice with free shipping to the U.S. or Canada! HOW TO ENTER: Visit our official Instagram giveaway post: Follow @orgomandatdestroyer Like the Instagram giveaway post Comment DAT or OAT and your planned test month on...

Here is a DAT and OAT Math practice problem from the Math Destroyer. Can you determine what fraction of the peptide’s amino acids are basic? Choose your answer before checking Dr. Romano’s solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your...

Here is a DAT and OAT Math practice problem from the Math Destroyer. Can you determine what fraction of the peptide’s amino acids are basic? Choose your answer before checking Dr. Romano’s solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your...

Congratulations to one of our Summer DAT students on an outstanding DAT performance! Academic Average: 530 Survey of the Natural Sciences: 540 General Chemistry: 600 Organic Chemistry: 560 Quantitative Reasoning: 530 Reading Comprehension: 500 Perceptual Ability: 460 Biology: 450 The DAT was...

Congratulations to one of our Summer DAT students on an outstanding DAT performance! Academic Average: 530 Survey of the Natural Sciences: 540 General Chemistry: 600 Organic Chemistry: 560 Quantitative Reasoning: 530 Reading Comprehension: 500 Perceptual Ability: 460 Biology: 450 The DAT was...

DAT and OAT Math practice from DAT Destroyer. Can you determine how many pounds of blueberries are needed for the 56-pound mixture? Choose your answer before checking the second slide for the complete solution. Free DAT and OAT study resources: Official DAT Destroyer Resources | DAT Prep...

DAT and OAT Math practice from DAT Destroyer. Can you determine how many pounds of blueberries are needed for the 56-pound mixture? Choose your answer before checking the second slide for the complete solution. Free DAT and OAT study resources: Official DAT Destroyer Resources | DAT Prep...

Registration is now open for our Spring 2027 In-Person DAT and OAT Prep Class in Staten Island, NY. Dr. Jim Romano teaches 100% of every in-person class and has more than 35 years of experience preparing students for the DAT and OAT. Start Date: Sunday, January 17, 2027 End Date: Tuesday...

Registration is now open for our Spring 2027 In-Person DAT and OAT Prep Class in Staten Island, NY. Dr. Jim Romano teaches 100% of every in-person class and has more than 35 years of experience preparing students for the DAT and OAT. Start Date: Sunday, January 17, 2027 End Date: Tuesday...

Functional groups are essential for DAT and OAT organic chemistry. Recognizing them quickly can help you identify compounds, predict reactions, and solve organic chemistry questions more efficiently. In this video, Dr. Jim Romano reviews important organic chemistry functional groups for the...

Functional groups are essential for DAT and OAT organic chemistry. Recognizing them quickly can help you identify compounds, predict reactions, and solve organic chemistry questions more efficiently. In this video, Dr. Jim Romano reviews important organic chemistry functional groups for the...

Can you identify which isotopic pair would exhibit the greatest kinetic isotope effect? Choose your answer before checking the explanation on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT Preparation for Free | Official Resources from...

Can you identify which isotopic pair would exhibit the greatest kinetic isotope effect? Choose your answer before checking the explanation on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT Preparation for Free | Official Resources from...

Test your DAT and OAT Biology knowledge with this question on Hashimoto’s disease. Choose your answer before checking the solution in the second image. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano

Test your DAT and OAT Biology knowledge with this question on Hashimoto’s disease. Choose your answer before checking the solution in the second image. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano

Can you identify the biology term that describes differences in appearance or behavior between males and females of the same species? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT...

Can you identify the biology term that describes differences in appearance or behavior between males and females of the same species? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT...

A medical laboratory wants to increase its daily average number of patients screened. Can you determine how many patients must be screened on the seventh day? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano...

A medical laboratory wants to increase its daily average number of patients screened. Can you determine how many patients must be screened on the seventh day? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano...

It’s early but am trying to Gauge my chances of getting into either ECU or UNC as they are both in state NC schools for me. Would appreciate any recommendations as I have many months before needing to apply as well as if DAT score is good enough. Date of submission: Early Application Overall...

Hemoglobin carries oxygen from the lungs to tissues throughout the body. How well do you know the quaternary structure of normal adult human hemoglobin? Choose your answer before checking Dr. Romano’s explanation on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano...

Hemoglobin carries oxygen from the lungs to tissues throughout the body. How well do you know the quaternary structure of normal adult human hemoglobin? Choose your answer before checking Dr. Romano’s explanation on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano...

A wood factory wants to increase its monthly production by 50%. Can you determine how many additional logs must be produced each workday? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT...

A wood factory wants to increase its monthly production by 50%. Can you determine how many additional logs must be produced each workday? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT...

I have worked with thousands of DAT and OAT students through the years, and one question I get asked over and over is: What study schedule should I follow? One of the biggest mistakes I see students make is trying to follow a study schedule created by someone else. No one else knows your...

I have worked with thousands of DAT and OAT students through the years, and one question I get asked over and over is: What study schedule should I follow? One of the biggest mistakes I see students make is trying to follow a study schedule created by someone else. No one else knows your...

A compound with the molecular formula C8H10 is oxidized to benzoic acid using hot acidic dichromate. Which compound must it be? Work through the molecular formula and oxidation chemistry before checking the second image for Dr. Romano’s explanation. Free DAT and OAT study resources from Dr...

A compound with the molecular formula C8H10 is oxidized to benzoic acid using hot acidic dichromate. Which compound must it be? Work through the molecular formula and oxidation chemistry before checking the second image for Dr. Romano’s explanation. Free DAT and OAT study resources from Dr...

Understanding when a reaction proceeds by SN1, SN2, E1, or E2 is essential for DAT and OAT Organic Chemistry. In this lesson, Dr. Jim Romano works through these reaction mechanisms and explains how to recognize the differences between substitution and elimination reactions. More free DAT and...

Understanding when a reaction proceeds by SN1, SN2, E1, or E2 is essential for DAT and OAT Organic Chemistry. In this lesson, Dr. Jim Romano works through these reaction mechanisms and explains how to recognize the differences between substitution and elimination reactions. More free DAT and...

For a limited time, save 15% on all individual DAT and OAT study books from Dr. Jim Romano and the Destroyer team. Use code AUGUST15 at checkout on orgoman.com. Sale ends August 23. Individual books only. Bundles are excluded from this promotion because bundles are automatically discounted...

Can you solve this one? Check the second image for Dr. Romano’s solution. Free DAT and OAT study resources from Dr. Jim Romano: Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano

DAT and OAT General Chemistry | DAT Destroyer | OAT Destroyer | Dr. Jim Romano Can you solve this one? Check the second image for Dr. Romano’s solution. Free DAT and OAT study resources from Dr. Jim Romano: Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano...

Review mean, median, mode, variance, and standard deviation for the DAT and OAT Quantitative Reasoning sections. This video works through basic statistics concepts and calculations that DAT and OAT students should understand for test day. Keep practicing and keep Destroying! Free DAT & OAT...

Review mean, median, mode, variance, and standard deviation for the DAT and OAT Quantitative Reasoning sections. This video works through basic statistics concepts and calculations that DAT and OAT students should understand for test day. Free DAT & OAT preparation resources from Dr. Jim...

Birds and dinosaurs provide an interesting way to review evolutionary history for the DAT and OAT. Test yourself with the question in the first image before checking Dr. Jim Romano's explanation in the second image. Keep practicing and keep Destroying! Free DAT & OAT Resources from Dr. Jim...