Tag: USABO Genetics
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Gene Regulation on the USABO: From the lac Operon to Epigenetics
Gene-regulation items on the USABO are logic puzzles. Learn the lac operon truth table, the cis-trans test for mutants, and how eukaryotic control and epigenetics extend it.
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The Genetics & Evolution 20%: A Problem-Solving Playbook for USABO Calculation Questions
Genetics and evolution make up about a fifth of USABO content, and they reward calculation, not memorisation. Here is a problem-solving playbook for the question types that trip students up.