Explain DNA strand direction
A DNA model in a cell respiration data workshop labels the two strands as running in opposite directions. State the term for this arrangement and why it matters in replication. Use the diagram, molecular model, or data labels before answering. Enter the answer and choose the interpretation that best matches the biological evidence.
Worked practice: biological evidence and answer
Use the labelled biological evidence first, then connect it to the final answer.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.