AQA's own year-by-year topic split, whether the practical endorsement applies to AS Biology, and June 2026 AS grade boundaries — sourced from AQA, not a school's scheme of work.
Book a Free ConsultationAQA A-level Biology (specification 7402) is a two-year linear qualification, and AQA's own subject-content page states that sections 1 to 4 — the first four of eight — are Year 12 content, while sections 3.5 to 3.8 are labelled “A-level only.” A school that also enters Year 12 for AQA's separate AS Biology qualification (specification 7401, first assessed May/June 2016) sits a different, standalone exam that most students never see explained anywhere else.
Not sure whether your child's school has entered them for AS Biology, or what a Year 12 programme should focus on either way? Our expert A-level Biology tutors build every programme around whichever route your child's school has actually chosen.
Book a Free Consultation Message us on WhatsAppAS and A-levels were decoupled from the 2015 teaching cohort onwards. The Department for Education states plainly that “AS and A levels will be decoupled — this means that AS results will no longer count towards an A level, in the way they do now.” AQA's AS Biology specification (7401) has been a fully separate, standalone qualification ever since, first assessed in May/June 2016, and a school can enter a Year 12 cohort for it, enter nobody, or enter only some students — the choice sits with the school, not with AQA and not with a parent.
AQA's own scheme of assessment adds a structural detail that matters for planning: AS Biology “is designed to be taken over one or two years,” but “in order to achieve the award, students must complete all exams in May/June in a single year.” A school cannot bank one AS paper in Year 12 and the other in Year 13 — if a student sits AS at all, both papers happen in the same May/June series, most commonly at the end of Year 12.
Nationally, the standalone AS route has become a minority choice. Ofqual's provisional entries for the summer 2026 exam series, counted across every AS and A-level subject combined — not Biology specifically — recorded 50,645 AS entries against 845,485 A-level entries: roughly one AS entry for every seventeen A-level entries. That national, all-subject figure does not tell a parent whether their own child's school enters for AS Biology, which is a question for the school directly, but it explains why standalone AS has become the exception rather than the default, and why a family should ask rather than assume.
The table below sets the two qualifications against each other on the points that actually matter to a Year 12 family: what each one covers, how it is marked, and where the practical endorsement sits.
| Feature | AS Biology (7401) | A-level Biology (7402) |
|---|---|---|
| Specification code | 7401 | 7402 |
| Structure | Linear, completed in one May/June series after one or two years' study | Linear, all assessment at the end of two years |
| First assessed | May/June 2016 | May/June 2017 |
| Content covered | Sections 1 to 4 only | Sections 1 to 4 in Year 12, sections 3.5 to 3.8 in Year 13 |
| Total marks | 150 (two papers, 75 marks each) | Reported only at the end of Year 13 |
| Practical endorsement | Does not apply; assessed via written papers only | Applies across both years, certificated separately from the grade |
| June 2026 grade boundaries | A 102, B 89, C 77, D 65, E 53 (of 150) | Published only once the full course is complete |
Source: AQA AS Biology 7401 specification, scheme of assessment and June 2026 grade boundaries; AQA A-level Biology 7402 subject-content page.
AQA's own subject-content page states the split in these words: “Sections 1–4 are designed to be covered in the first year of the A-level and are also the AS subject content. So you can teach AS and A-level together.” Its contents list then labels the remaining four sections explicitly as A-level only: 3.5 Energy transfers in and between organisms, 3.6 Organisms respond to changes in their internal and external environments, 3.7 Genetics, populations, evolution and ecosystems, and 3.8 The control of gene expression — all four marked “(A-level only)” in AQA's own contents list.
That is a genuine, published year-by-year split, not a convention borrowed from a school's own scheme of work or a revision site's own filing system. A Year 12 student, whether or not their school enters them for AS, works through sections 1 to 4 in the first year; ecology, evolution, gene expression and whole-organism energetics wait for Year 13 regardless. It is also the reason AQA can teach AS and A-level cohorts in the same Year 12 classroom: the content is identical until the point where a school decides whether to enter some or all of its students for the standalone AS papers.
For revision planning this matters more than it first appears. A student who knows their school is not entering them for AS still benefits from treating sections 1 to 4 as a complete, finished unit by the end of Year 12, because AQA places sections 3.5 to 3.8 immediately afterwards in the same specification rather than as a separate, standalone topic list. Whichever route a school has chosen, the same first-year content is the foundation the second year is built on, so treating it as something to finish properly — not half-remember and revisit later — pays off regardless of whether a student ever sits an AS paper.
Sections 1 to 4 are the foundation for everything that follows in A-level Biology — our expert Year 12 Biology tutors make sure that foundation is solid before Year 13 builds on it.
Book a Free Consultation Message us on WhatsAppA student entered for AS Biology 7401 sits two written papers, each worth a maximum of 75 marks, for a total of 150 across the qualification — AQA's own mark scheme confirms both papers at “[max 75]” against a stated “Maximum Mark 150.” That is a smaller, different total from the full two-year A-level, sat in one May/June series after one or two years of study rather than two.
AQA's confirmed grade boundaries for the June 2026 AS Biology series, out of that 150-mark total, run A to E: A at 102, B at 89, C at 77, D at 65 and E at 53. A family comparing a Year 12 AS result against an A-level grade boundary is comparing two different mark scales and two different qualifications — the raw numbers are not interchangeable, even where both happen to share a letter grade.
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Our expert A-level Biology tutors work section by section from AQA's own subject-content specification, so a Year 12 student gets exam-ready coverage of sections 1 to 4 whether or not their school enters them for AS.
Book a Free Consultation Message us on WhatsAppThe parent A-Level Biology page covers what the practical endorsement is, how the Common Practical Assessment Criteria work and what the result means on a certificate in full. The question that matters specifically for Year 12 is narrower: does any of that apply if a student is entered for AS only?
AQA answers directly, on its AS-specific practical-assessment page: “Assessment of practical skills in this AS specification will be by written exams only. The practical endorsement does not apply to the AS specification.” There is no separate Pass/Not-classified certificate for an AS-only student, and no separate sign-off to chase. What AS does still demand is written-paper coverage of practical thinking: AQA states that students are expected to have carried out at least the six required practical activities set out in section 7.2, and that 15% of the AS papers' marks relate to practical work — fewer required activities than the twelve AQA specifies across the full two-year A-level, but not a free pass on practical skills.
A Year 12 Biology programme starts from a question that varies school to school: is this student sitting AS Biology in May/June, or moving straight through to the full A-level without a separate AS sitting? Our tutors confirm which route a school has actually chosen before building anything, because the two routes call for different priorities within the same academic year — a student sitting AS needs written-paper practical technique across sections 1 to 4 finished to exam standard ahead of the spring series, while a student going straight through has the whole of Year 13 to consolidate the same four sections before sections 3.5 to 3.8 begin.
Our expert A-level Biology tutors work from AQA's own subject-content specification and June 2026 grade boundaries, building each Year 12 programme around a student's actual exam board, school and, where relevant, AS entry decision, rather than a generic “A-level Biology” syllabus that ignores the difference. Diagnostic work at the start of a programme establishes which sections a student is weakest in, and sessions are then weighted towards those sections rather than working through the specification in a fixed order. For the wider subject, our Biology tutor service covers GCSE and A-level together, and our A-Level tutoring page lists every subject we cover.
Whichever route your child's school has chosen for AS Biology, our expert A-level Biology tutors can build a Year 12 programme around it — get in touch and we'll confirm what your child actually needs.
Book a Free Consultation Message us on WhatsAppYes. AQA publishes AS Biology as specification 7401, entirely separate from A-level Biology's specification 7402, and the two have been decoupled since AS and A-level reform: the Department for Education states that “AS results will no longer count towards an A level, in the way they do now.” AS 7401 was first assessed in May/June 2016 and can be sat after one or two years of study. Whether a school enters a Year 12 cohort for it is a decision each school makes independently, not something set by AQA or by national policy.
AQA's own subject-content page states that sections 1 to 4 “are designed to be covered in the first year of the A-level and are also the AS subject content,” while its contents list marks sections 3.5 to 3.8 explicitly “(A-level only)” — energy transfers, organism responses to internal and external change, genetics/populations/evolution/ecosystems, and the control of gene expression. That published split is the genuine year-by-year structure behind A-level Biology, whatever a school's own scheme of work happens to call it.
AS Biology 7401 is assessed across two written papers worth a maximum of 75 marks each, 150 marks in total. AQA's confirmed grade boundaries for the June 2026 series, out of that 150-mark total, were A at 102, B at 89, C at 77, D at 65 and E at 53 — a different mark scale entirely from the full two-year A-level's boundaries.
No. AQA states directly, on its AS-specific practical-assessment page, that “assessment of practical skills in this AS specification will be by written exams only. The practical endorsement does not apply to the AS specification.” An AS-only student is still expected to have carried out at least the six required practical activities set out in section 7.2, and 15% of the AS papers' marks relate to practical work, but there is no separate Pass/Not-classified certificate at AS.
Nationally, and across every AS and A-level subject combined rather than Biology specifically, Ofqual's provisional entries for summer 2026 recorded 50,645 standalone AS entries against 845,485 A-level entries — roughly one AS entry for every seventeen A-level entries. That national, all-subject figure cannot say what any individual school does with Biology specifically; the school itself is the only reliable source for that, and it is worth asking directly rather than assuming either way.
No. AS and A-level Biology have been decoupled since the 2015 reform, and the Department for Education confirms that “AS results will no longer count towards an A level, in the way they do now.” A Year 12 AS result stands alone on its own 150-mark scale and its own certificate; the A-level grade awarded at the end of Year 13 is calculated entirely from the A-level's own written papers.
Nothing changes in terms of the A-level content itself: AQA's subject-content page confirms sections 1 to 4 are taught in Year 12 either way, because they are also the AS content and, in AQA's own words, “you can teach AS and A-level together.” A student who is not entered for AS simply continues straight into sections 3.5 to 3.8 in Year 13 without sitting a separate May/June AS paper first.
Our expert A-level Biology tutors build every Year 12 programme around AQA's own subject-content split and, where a school enters for it, AS Biology 7401. Leading Tuition is rated 4.8 out of 5 on Trustpilot from 58 reviews, and 91% of our students go on to achieve their desired grades. Read more on the A-Level Biology page or explore Biology tutoring across GCSE and A-level.
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