The personal statement for biological sciences: a guide for Year 12s

27 October 2026, for 2027 and 2028 entry. Requirements and dates change between cycles, so treat the official pages as the final word.

If you're in Year 12 and thinking about Biology, Biological Sciences, Biomedical Sciences or Biochemistry, your personal statement is three short answers to three set questions, read by people who teach the subject. This guide is about writing those answers well, starting now, while you still have time to do the things worth writing about.

It's written for applicants to Oxford, Cambridge and Imperial, and to any Russell Group university for these courses. The advice is the same for all of them, with a few differences I'll point out as we go.

Most personal statement advice online was written for the old format, a single free-flowing essay. That changed for 2026 entry. Some of the old advice still holds and some of it doesn't, so I've tried to be clear about which is which.

I'm a biology teacher. I wrote my own Cambridge Natural Sciences statement from a state school without much idea what I was doing, and I've since read a lot of other people's. Everything factual here is checked against UCAS and the universities' own pages, which are linked at the bottom.

Jump to: Format and deadlines What tutors want The three questions Year 12 plan Mistakes and AI FAQs

The format, and the deadlines

Since 2026 entry, the UCAS personal statement has been three questions instead of one essay:

1. Why do you want to study this course or subject?
2. How have your qualifications and studies helped you to prepare for this course or subject?
3. What else have you done to prepare outside of education, and why are these experiences useful?

• 3 questions to answer
• 4,000 characters in total
• 350 characters minimum each

Each answer has to be at least 350 characters, which is roughly 60 words. The total across all three is 4,000 characters including spaces, the same limit as before, so somewhere around 600 words. You can split that however you like. UCAS doesn't expect equal thirds, and neither do the universities.

You write one statement, and every university you apply to reads the same one. If you're applying for Biological Sciences at four places and Biomedical Sciences at a fifth, write about biology broadly enough that it reads as a good fit for all five.

The January date is called the equal consideration deadline because every application that arrives by then has to be considered on the same basis. After it, universities can still consider you, but they don't have to. Your school will almost certainly set an internal deadline earlier than either date, so that your teacher has time to write your reference. Check theirs, not just UCAS's.

If you're in Year 12 now, your dates will be a year later: mid-October 2027 for Oxford and Cambridge, mid-January 2028 for everyone else. UCAS confirms each cycle's exact dates in the spring.

What admissions tutors are looking for

The short version is the same everywhere: evidence that you've gone after biology on your own, and that you've thought about what you found. The differences are in emphasis.

Oxford colleges commonly suggest roughly 80% academic content and 20% everything else. That's a rule of thumb, not a quota, but it's a good check. Count your sentences when you've finished a draft.

Two things matter more than any of the above. First, at Oxford and Cambridge, anything in your statement can come up at interview. Only write about what you'd be happy to discuss for ten minutes. Second, “specific” beats “impressive” every time. A book you argued with is worth more than a prestigious placement you can't say much about.

The three questions, for biologists

The strongest statements I've read follow one line of curiosity across all three answers. Something caught your attention, you went looking, you found something else, and you're still thinking about it. The three boxes are just where the pieces of that story sit.

The examples below are ones I've written to show the difference. Please don't copy them: UCAS screens every statement for similarity, and they wouldn't sound like you anyway.

What to do in Year 12

The statement gets written in Year 13, but the material for it comes from Year 12. Nobody can write a specific statement about things they haven't done yet, so the most useful thing you can do now is to start collecting.

Keep a log from today. Every time you read, watch or do something biological outside lessons, write one line in each column. It takes two minutes, and in a year's time it'll be the most useful document you own.

The last column is the one that matters. A log full of “nothing” in that column is a reading list. A log where each entry leads to the next one is a personal statement.

A rough year, for anyone starting now:

1. Autumn term. Start the log. Pick one area you'd happily read more about and follow it. Ask your head of biology whether the school enters the British Biology Olympiad in January, because you can't enter on your own. Nuffield Research Placement applications open in late November.
2. Winter. UNIQ applications for Oxford's summer school usually run from mid-December to mid-January. Sutton Trust summer school applications follow early in the year, with Cambridge's deadline usually in February.
3. Spring term. Keep reading along your thread, and branch out when something catches you. Look at Cambridge's HE+ and subject masterclasses, which take no application to speak of. Check whether you'll need the ESAT for any of your courses.
4. Summer. Placements and summer schools, if you've got one. By the end of July, turn your log into bullet points under the three questions. Don't write prose yet.
5. September of Year 13. Write the first full draft, get feedback, and redraft. Most good statements go through three or four versions. Oxford and Cambridge applicants submit by mid-October. Everyone else should aim to be done well before Christmas, not on the January deadline.

My super-curriculars guide has dates, eligibility and links for everything in that list.

Common mistakes, AI, and difficult circumstances

What I'd cut from most first drafts

• “Ever since I was young” openings. Cambridge specifically asks you not to write things like “I have always wanted to study this subject”. Start with the thing itself.
• Lists. Oxford's Biomedical Sciences guidance is blunt about this: don't simply recount everything you've done. Three things discussed properly beat ten things named.
• Name-dropping you can't back up. If you mention CRISPR, epigenetics or a book, expect to be asked about it. Undergraduate vocabulary you can't explain does more harm than good.
• Anything that would work for a different subject. “I enjoy problem solving and teamwork” fits every course on UCAS. Cut it, or tie it to something only a biologist would do.
• Exaggeration. Oxford says it may check what you claim. “Shadowed” a researcher for an afternoon is not “worked in a lab”.
• A medicine statement in disguise. Biomedical Sciences applicants sometimes write about wanting to help patients. Write about the science instead.
• Famous-scientist quotes. They use up characters to show us someone else's thinking.
• Naming a university. All five read the same statement.

Questions I get asked

Written by Flora, who teaches this. More about me, or email me a question.