Biological sciences personal statement example

Why do you want to study this course or subject?

Every October the sycamore leaves along my walk to school are covered in black blotches ringed with yellow. When I looked them up, I learned they are tar spot, caused by the fungus Rhytisma acerinum, which overwinters on fallen leaves and reinfects the tree in spring. Its abundance has also been linked to air quality, because sulphur dioxide is thought to suppress it. I was struck that something so visible had a life cycle hidden in leaf litter. That mix of organism, environment and evidence is what draws me to biological sciences. I want to understand living things at several scales: how a spore germinates on a leaf, how the tree responds, and why the pattern changes between a busy road and a park. A broad degree appeals because I have not yet chosen between ecology and cell or molecular biology, and I keep finding that they meet. Studying DNA replication made me wonder how fungal populations vary genetically, while geography fieldwork made me ask how that variation plays out across a landscape. I want to learn the laboratory and statistical methods that turn noticing a pattern into testing it.

How have your qualifications and studies helped you to prepare?

A level Biology has given me practical confidence. Preparing onion root tip squashes and counting cells at each stage of mitosis taught me patience with a microscope and showed how easily a poor stain hides the detail. Serial dilutions and chromatography made me careful with volumes and labelling. In Chemistry, work on buffers and reaction rates helped me understand enzymes as molecules whose behaviour depends on conditions, not just as diagrams. Geography trained me to plan fieldwork, and my coursework on infiltration rates across a school field taught me to choose sampling points before collecting data rather than afterwards. My Extended Project brought these together. I collected sycamore leaves from a roadside verge and a park, counting tar spots on fifty leaves per site and recording leaf area. The park leaves carried more spots, but I could not claim this proved an air quality effect: the council rakes the verge, which may remove infected leaf litter, and two sites are far too few. Using a Mann-Whitney U test rather than a t-test, because my counts were skewed, was a small decision I am proud of. Writing the evaluation taught me as much as the results did. The difference between an association and an explanation is now a question I bring to other biological results.

What else have you done to prepare outside of education, and why are these experiences useful?

On Saturdays I work in the kitchen of a local fish and chip shop. I fill in fridge and fryer temperature logs, rotate stock and keep raw fish away from ready-to-eat food. It is not science, but it has made me methodical and calm when the queue reaches the door, and I have been trusted to train two new starters in the cleaning routine. Every Wednesday afternoon I volunteer as a reading helper at a nearby primary school, listening to Year 3 pupils read. Explaining a tricky word in a way that suits each child has improved how I explain ideas generally, and I now help classmates revise cell transport before tests. I also play bass guitar in the school jazz band. Holding a steady line under other players has taught me to listen and to practise unglamorous parts until they are reliable. Outside school I have read Merlin Sheldrake's Entangled Life, which made me rethink fungi as partners in networks as well as pathogens, and I keep a notebook of fungi I find on local walks, checking identifications against a field guide and noting where I am unsure. I would bring this steady, curious habit of looking closely, recording honestly and questioning my own conclusions to a biological sciences degree.