Biotechnology
MYP Year 5 Sciences — Biotechnology unit
Biotechnology is where biology stops being purely descriptive and turns into an engineering problem — you're not just learning what cells do, you're learning how humans hijack, edit and rebuild biological systems for medicine, food and industry. Every exam question here hands you a graph, a data table, or a real-world scenario and asks you to reason through it. Reciting a definition of 'CRISPR' or 'cloning' gets you nothing without the mechanism underneath it and the trade-offs sitting on top of it.
Overview — the shape of biotechnology
Biotechnology uses living organisms, cells or their molecules to build something useful — a copy of an organism, a piece of tissue, a corrected gene, or a map of an entire genome. The five ideas in this unit (cloning, bioprinting, genetic modification, ethics, genome mapping) aren't separate topics — they're stages of the same story: read the genome understand it copy/edit/print it decide whether you should have.
- Cloning and genetic modification both manipulate DNA/cells, but cloning copies without changing the sequence — GM deliberately changes it.
- 3D bioprinting is the 'manufacturing' end of biotech — turning biological material into a physical structure, layer by layer.
- Genome mapping is the information layer underneath everything else — you can't edit or clone intelligently without first knowing what the genome contains.
- Ethics isn't a bolt-on topic in exams — almost every scenario question (pricing, patenting, germline editing) is testing whether you can name a specific stakeholder and consequence, not just say 'it could be misused'.
The shape of the chapter
Command terms this topic loves to use against you
| Command term | What it demands | AO | Mark-earning move |
|---|---|---|---|
| State | Give a short, precise answer with no explanation needed. | Knowledge/recall | One correct fact earns the mark — padding it with explanation wastes time and gains nothing extra. |
| Identify | Name the specific feature/variable/component being asked for. | Knowledge/recall | Name exactly what's asked (e.g. the precise independent variable) — a vague category answer like 'a variable' scores zero. |
| Explain | Give the reason or mechanism behind a pattern — the WHY or HOW, not just the WHAT. | Understanding/application | You need cause linked to effect; describing the trend alone (without the mechanism) caps you below full marks. |
| Compare | State similarities AND differences between two named things. | Analysis | Linking words like 'whereas' or 'unlike' score higher than two unlinked separate descriptions. |
| Discuss / Evaluate | Present multiple viewpoints (benefits AND risks/drawbacks) and weigh them against each other. | Evaluation | A one-sided answer is capped — top marks need balance, and ideally a final judgement. |
| Suggest | Propose a scientifically reasonable idea, even one not explicitly taught. | Application | Any biologically plausible answer is accepted — don't leave it blank because it 'wasn't in the notes'. |
Key point
Overview