What B/B actually tests
B/B covers biology and biochemistry, with organic and general chemistry in supporting roles. It is the most experiment-driven section: passages routinely present novel studies, and the questions test whether you can connect your content knowledge to data you have never seen before.
Pure recall questions exist, but the section's center of gravity is application: reading a figure, tracking an experimental design, and reasoning one step past what the passage states.
Reading a 122 honestly
A 122 in B/B sits in the 23rd percentile on the official AAMC section table, in the lower part of the 118 to 132 scale. If this section pulled your total score down, that is frustrating, and it is also useful: it tells you exactly where a retake's points are most available.
A section score in this range usually reflects a fixable combination of gaps and execution rather than a ceiling. The plan matters more than the panic.
How Retakers move this section
B/B improvement on a retake tends to come from practicing the passage-to-question connection rather than re-watching content videos. If your content base held up, the leverage is in experimental reasoning and figure literacy.
The B/B Section Bank is the best official window into that skill, with the Biology Question Packs providing the volume work underneath it.
Common questions
Is a 122 B/B score good?
A 122 in B/B is in the 23rd percentile on the official AAMC section table, meaning 23% of section scores were equal to or lower. Whether it is strong enough depends on your total score, your section balance, and your target programs.
What percentile is a 122 in B/B?
On the AAMC section percentile table in effect May 1, 2026 to April 30, 2027, a 122 in B/B is in the 23rd percentile.
How do Retakers improve B/B?
B/B improvement on a retake tends to come from practicing the passage-to-question connection rather than re-watching content videos. If your content base held up, the leverage is in experimental reasoning and figure literacy.
See the fuller picture
Section scores only mean something in context. For scale, a 122 across all four sections would land near a 488 total. Compare nearby B/B scores: a 121 in B/B and a 123 in B/B, or see how a 122 reads in the other sections: C/P · CARS · P/S.
For a personalized read on your whole score report, start with the free Retaker Calculator, and when you are ready to build the plan, The Retaker Course schedules your B/B work for you.