GCSE Biology: what the summer 2026 data actually shows

JCQ published the summer 2026 GCSE results on 20 August 2026. Separate Biology took 180,769 UK entries and 43.64% of them were graded 7/A and above. This page uses that release, and the four awarding bodies' own confirmed June 2026 boundary documents, to answer the questions a statement of entry raises: which specification, which tier, and what a grade actually took in marks.

What does the code on your child's statement of entry mean?

The first useful thing on a statement of entry is not the subject name; it is the code printed beside it. AQA's separate biology is 8461. Pearson Edexcel's is 1BI0. OCR runs two different biology suites in the same series – Gateway Science Biology A is J247, and Twenty First Century Science Biology B is J257. Those codes are not interchangeable. The papers behind them differ, the maximum marks differ, and as the June 2026 boundaries further down this page show, the grades were awarded on strikingly different mark totals.

If the entry slip has gone missing, the qualification number does the same job from a certificate. AQA's GCSE Biology carries the Ofqual accreditation number 601/8752/9, which appears in the specification's own page data as "qanCode". That number identifies the qualification a school actually entered a candidate for, independently of what the timetable, the exercise book, or a parents' evening conversation happened to call it.

A letter after the code carries the tier. On AQA, 8461H is Higher and 8461F is Foundation, and the individual papers appear in the form 8461/1H. A code in the 8464 family is not separate biology at all: that is Combined Science: Trilogy, the double award, where biology, chemistry and physics are assessed together and reported as two grades rather than three. Mistaking one for the other is the most common misreading of an entry slip, and it changes what revision material is relevant, what practicals the student has done, and what the grade will look like on a transcript.

Separate biology is the minority route by a wide margin. In summer 2026 JCQ recorded 180,769 UK entries for separate GCSE Biology across all ages, against 1,007,628 for Science: Double Award. Dividing 1,007,628 by 180,769 gives 5.6, so more than five candidates sat the combined qualification for every one sitting separate biology. That ratio matters when you read revision material online: most of what is published about GCSE biology is written for the larger audience, and a good deal of the rest is written for a single board.

Search the subject and the first page of results is revision content and awarding-body specification pages: topic notes, past papers, flashcards, and the specification itself. Those are genuinely useful once you already know which board you are on. What none of them carries is the summer 2026 outcome data, or any like-for-like comparison of what a grade took in marks across the boards. That comparison is the substance of the rest of this page, and it is why our GCSE tuition begins with the specification rather than the topic list.

What did summer 2026 actually show?

JCQ published the summer 2026 GCSE results on 20 August 2026. Across all subjects, the press notice for the series records that "22% of GCSE results were awarded 7/A and above, compared to 21.9% in 2025". Biology moved in the same direction and by a similarly small amount: 43.64% at 7/A and above in 2026 against 43.45% in 2025. An earlier version of this page said those outcomes had not been published. They had been, three days before this update, and the table below is the correction.

Two things in that table need separating, because commentary usually runs them together. Entries fell: 180,769 in 2026 against 183,539 in 2025 is 2,770 fewer, and 2,770 as a share of 183,539 is 1.5%. Attainment did not fall. The share at 7/A and above rose by 43.64 minus 43.45, or 0.19 percentage points, and the share at 4/C and above rose by 89.62 minus 89.37, or 0.25 points. Nothing in that data says the subject got harder. It says slightly fewer students chose it, and the ones who did performed almost identically to the previous cohort.

Age matters more than the year-on-year movement. Of the 180,769 UK entries, 174,032 came from 16-year-olds, and that group was graded better than the cohort taken as a whole: 44.53% at 7/A and above and 90.62% at 4/C and above. The balance is spread across younger early-entry candidates and a post-16 group whose outcomes look very different, which is dealt with in its own section further down. Any single headline percentage for GCSE Biology is an average across those populations, and the average conceals more than it reveals.

For comparison, Science: Double Award took 1,007,628 UK entries in summer 2026, with 9.41% at 7/A and above and 58.30% at 4/C and above. Those two lines are not measuring the same thing and should not be read as a difficulty ranking. The double award is the default route in most schools and the separate sciences are, in most schools, a selected set. The England grade tables in the next section make that selection effect visible rather than leaving it as an assumption.

Separate Biology or Combined Science: what the 2026 grades say

The triple-versus-double question is usually argued on opinion, or on what a sixth form is believed to prefer. JCQ's England table lets it be argued on outcomes instead. Both qualifications were sat in the same series, marked under the same regulatory framework, and reported on the same 9-to-1 scale. Here they are side by side as cumulative percentages, so "grade 7 and above" includes everyone graded 7, 8 or 9.

The headline is stark. 13.68% of separate biology entries in England were graded 9, against 1.14% of double award entries: 13.68 divided by 1.14 is 12.0, so a grade 9 was twelve times more common on the separate paper. At the other end of the scale, 89.63% of separate biology entries reached grade 4 and above against 58.06% of double award, a difference of 31.57 percentage points. The middle of the distribution tells the same story: 65.03% of separate biology entries reached grade 6 and above, against 19.46%.

What that does not prove is that separate biology is easier. Schools choose who takes it, and they generally choose students already achieving well in science. The gap is mostly a selection gap rather than a difficulty gap, and any page that presents it as evidence of difficulty is misreading its own table. The honest version of the claim is narrower and still worth having: if your child is in the separate-science set, the distribution they are competing inside is far more top-heavy than the national science picture, and a grade 7 is an ordinary rather than an exceptional outcome in that room.

The tier arithmetic on the double award runs the same way. On AQA's Combined Science: Trilogy 8464 at Higher tier in June 2026, a 4-4 needed 111 of the 420 available marks, or 26.4%, while a 9-9 needed 298 of 420, or 71.0%. A student clearing the lower figure comfortably but sitting nowhere near the upper one is being asked, by the separate-science route, to work across three full specifications instead of one combined one. Whether that is the right call is a timetable and workload question at least as much as an ability question.

One practical note for anyone reading a school's option booklet. The double award produces two grades and the separate route produces three, so the two are not directly comparable on a transcript either. A sixth form asking for a specific grade in biology is asking about the separate qualification, or about the double award grades, and it is worth reading which before the option form goes back rather than discovering the difference in the final GCSE year.

How many marks was a grade 9 worth in June 2026?

This is where a single national conversation about GCSE biology falls apart. Four awarding bodies sat a qualification with the same name in the same series, and each published its confirmed subject boundaries on 20 August 2026. Expressed as a share of the maximum mark available, the grade 9 threshold ranged from roughly two-thirds of the paper to well over four-fifths.

The percentage column is simply the mark divided by the maximum for that specification. AQA's grade 9 was 133 of 200 marks, or 66.5%. Edexcel's was 170 of 200, or 85.0%. OCR's Gateway suite sat at 141 of 180, or 78.3%, and its Twenty First Century suite at 138 of 180, or 76.7%. The spread between highest and lowest is 85.0 minus 66.5, or 18.5 percentage points, on qualifications that appear on a transcript under the same three words. Two students with identical mark shares can therefore hold different grades, and neither has done anything unusual.

The same pattern holds at the grade that matters most. AQA awarded grade 4 on 52 of 200, or 26.0%; OCR's Twenty First Century suite on 53 of 180, or 29.4%; OCR Gateway on 69 of 180, or 38.3%; and Edexcel on 84 of 200, or 42.0%. That is 42.0 minus 26.0, a 16.0-point spread, at the threshold that most often decides whether a student progresses to A Level study in a science subject.

Two cautions attach to that table. First, these are subject boundaries, which are the lines that decide a grade. AQA's own document says it "shows the confirmed subject grade boundaries and the notional component grade boundaries for illustrative purposes only", so marking a single past paper against a component line and reading off a grade will mislead you. Second, the table has a deliberately empty row. WJEC Eduqas is a real biology specification with real candidates, but its June 2026 boundaries were not retrievable at the time of writing, so the row is left blank rather than filled with a plausible figure.

It is also why cross-board revision advice about "what percentage you need" is close to useless. A target of four-fifths of the marks is a comfortable grade 9 on one specification in this series and short of it on another. The only threshold worth working towards is the one published by the board named on the statement of entry, in the series closest to the one being sat.

What is the Foundation ceiling, and what did half the marks earn?

Tier is a ceiling, and it is set months before the exam. Foundation tier papers on AQA's 8461 cannot award above grade 5; Higher tier cannot award below grade 4, apart from a single allowed grade 3 for candidates who narrowly miss. Ofqual requires the two tiers to overlap: "at least 20 per cent of the marks available in the assessments for each tier" must come from questions common to both tiers and targeted at grades 4 and 5. That overlap is the mechanism that makes the two routes comparable where they meet, and it is also the reason the same raw total means something completely different on each paper.

Take a round number and follow it through both tiers. Half of AQA's 200 marks is 100. On the Higher paper in June 2026 that sat above the grade 6 line of 88 and below the grade 7 line of 107, so it was a grade 6. On the Foundation paper the same total sat above the grade 3 line of 91 and below the grade 4 line of 127, so it was a grade 3. Same raw mark, same subject, same series, three grades apart. Any generic advice that ties a fixed percentage to a fixed grade has failed before it even reaches the tier question.

The component boundaries in the same document show how marks are distributed inside the Higher tier. On paper 1 at Higher, out of 100 marks, the notional grade 9 line was 67, grade 7 was 54 and grade 4 was 27. Those figures are illustrative only, but they make the shape of the paper visible. The distance from grade 4 to grade 7 is 54 minus 27, or 27 marks; the distance from grade 7 to grade 9 is 67 minus 54, or 13. The top two grades are separated by less than half the marks that separate a pass from a strong pass, which is why the last stretch of improvement is so much steeper than the first.

Tier decisions are usually taken in the spring of the final GCSE year on mock evidence, and they remain reversible up to the entry deadline. If a student is being moved to Foundation to protect a grade 4, the honest question is whether the Higher grade 4 line – 52 of 200 marks in June 2026, or 26.0% – is genuinely out of reach, because in raw marks it is a lower bar than the Foundation grade 4 line of 127. The trade is real in either direction, but it should be made with the numbers in front of you.

Is biology the easy science?

Biology has a reputation as the accessible science, and the reputation has a real basis: Ofqual requires the smallest share of mathematical marks in biology of the three separate sciences. But the June 2026 boundaries point the other way, and they point that way for a reason worth understanding rather than dismissing.

AQA awarded a grade 9 in Biology on 133 of 200 marks, or 66.5%. In Chemistry, on the same maximum in the same series, it took 155 of 200, or 77.5%. That is 155 minus 133, or 22 more marks, for the same grade on the same day from the same board. At grade 4 the pattern reverses: Chemistry sat at 43 of 200 against Biology's 52, so the chemistry pass line was 52 minus 43, or 9 marks lower.

Lower boundaries do not mean an easier subject. Awarding bodies move boundaries precisely in order to hold the standard constant when a paper turns out harder relative to the cohort that sat it. A grade 9 awarded on roughly two-thirds of the marks says AQA's biology papers were demanding for the students who took them. A grade 9 awarded on more than three-quarters says the chemistry paper was, relative to its own cohort, more straightforward. The boundary is evidence about the paper, not a verdict on the subject's reputation, and reading it the other way round is one of the most common errors in exam commentary.

It is worth noticing what the two subjects share as well. Both were sat for the same maximum of 200 marks at Higher tier, both were awarded on 20 August 2026, and both had their grade 8 lines published in the same document: 120 for Biology and 137 for Chemistry. The gap at grade 8 is 137 minus 120, or 17 marks, narrower than the 22-mark gap at grade 9. The two subjects converge as you come down the scale and cross over before grade 4, which is a more interesting fact about paper design than any general claim about which science is hard.

The physics row in that table is blank on purpose. The boundary line for AQA's separate physics was not verified in this pass, and a plausible figure inserted to complete a table is worse than a visible gap, because a reader cannot tell the difference between the two. The same principle governs every empty cell on this page.

Exactly which maths does GCSE Biology need – and which it does not?

Ofqual sets a floor rather than a target. Its subject-level conditions for the single sciences state that "the total mark used to credit the relevant Mathematical Skills is no less than – (i) for a GCSE Qualification in Biology, 10 per cent of the sum of all of the marks allocated to assessment objectives AO1 to AO3". Chemistry and physics carry higher floors under the same condition. That is a minimum and not a cap: a board can exceed it, and the figure describes the regulator's requirement rather than any particular paper.

Far more useful than the percentage is the list sitting behind it. Ofqual's appendix of mathematical skills marks, skill by skill, which of the sciences must assess each one, and biology's row is distinctive in both directions. Understanding sampling is marked for biology and combined science, and for neither chemistry nor physics: the requirement is to "Understand the principles of sampling as applied to scientific data". Simple probability is marked the same way. Both are there because biology is the science that works with populations, variation and inheritance, where a result is only as good as the way the sample was taken.

In the other direction, biology is exempt from the algebra the other two sciences require. Changing the subject of an equation, and substituting numerical values into algebraic equations, are marked for chemistry, physics and combined science, but not for biology. That is genuinely actionable in a lesson. A biology student who freezes at rearranging a formula is not being blocked from marks by that weakness in this subject, so time spent drilling it is time taken from something that does carry marks. A student who cannot read a sampling method critically, or interpret a probability, is losing marks in a place the specification guarantees will be examined.

The rest of the assessment framework is fixed too. Ofqual sets the assessment objective weightings across biology, chemistry and physics, and requires that boards "design and set the assessments for that qualification on the basis that the total amount of time spent by each Learner in taking those assessments will be no less than 3.5 hours". Two written papers, no coursework, and no separate practical examination. If you want the same treatment applied to another subject, our subject pages follow the same structure.

Which required practicals does a combined science student never do?

This is the difference between the two routes that shows up in a lesson rather than on a syllabus. AQA's specification lists ten required practical activities for 8461 and flags three of them as biology only. A student who studied Combined Science: Trilogy has never carried out those three, which matters because the written papers examine them directly.

AQA's exact wording for the first is "Required practical activity 2:investigate the effect of antiseptics or antibiotics on bacterial growth using agar plates and measuring zones of inhibition." The second is the tropism investigation, described by AQA as an instruction to "investigate the effect of light or gravity on the growth of newly germinated seedlings." The third is "Required practical activity 10:investigate the effect of temperature on the rate of decay of fresh milk by measuring pH change." An earlier version of this page presented shortened versions of the first two inside quotation marks. The substance was right and the activities were correctly identified, but the wording was a reconstruction rather than AQA's own text, so it has been replaced.

The examinable weight of that material is not small. AQA states that questions drawing on the required practicals "will count for at least 15% of the overall marks for the qualification", and Ofqual sets the same kind of floor from the regulator's side, requiring that the marks credited to practical knowledge, skills and understanding are "no less than 15 per cent of the sum of all of the marks allocated to assessment objectives AO1 to AO3". Board and regulator are saying the same thing from two directions, which is unusually clear as regulatory drafting goes.

The practical consequence for a student moving between routes – from combined science into separate biology mid-course, or arriving from another school partway through – is that a measurable share of the paper draws on work they were never in the room for. Zones of inhibition, tropisms and the rate of decay are not difficult ideas in themselves, but they are examined as method: what was controlled, what was measured, how the result was recorded, and why it is or is not reliable. Reading about a practical is a poor substitute for having done one, and it is the first gap a specialist tutor looks for when a student's topic knowledge looks strong but their paper marks do not.

What happens if you resit GCSE Biology after the main exam year?

Resitting biology beyond the main GCSE year is a small cohort having a distinctly harder time of it, and it is a group almost no revision site publishes outcome data for. In summer 2026 there were 5,820 UK entries for separate GCSE Biology from candidates aged 17 and over. Of those, 20.56% were graded 7/A and above and 65.68% reached 4/C and above.

Set against the main cohort, that is a wide gap. Among the 174,032 entries from 16-year-olds, 44.53% were graded 7/A and above and 90.62% reached 4/C and above. The difference at 4/C and above is 90.62 minus 65.68, or 24.94 percentage points. The usual explanation holds: the resit population is, by definition, made up of students who did not clear the bar first time, and many of them are doing it alongside a full post-16 timetable rather than as their main course of study.

What the data does not say is that a resit is a poor bet. Roughly two in three of that cohort did reach 4/C and above. It says the conditions are worse – less teaching time, no laboratory access, and a longer gap since the content was taught – not that the students are. That is precisely the situation where structured one-to-one work against the specification, rather than general revision, changes the outcome, and it is the same reasoning behind our sixth form entry support.

It is also worth checking which specification a resit centre enters candidates for, because it need not be the one they were originally taught. A student taught AQA's 8461 and then entered for a different board meets a different paper structure, different required practical wording, and, as the June 2026 boundaries above show, a different mark threshold for the same grade. Confirming the code before revision starts is a five-minute job that protects months of work.

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