Mutation as the source of all new variation, the technologies built on it, and the biological and ethical questions those technologies raise.
These are the statements the Biology syllabus makes about Module 6: Genetic Change. Dux records each one against the questions you answer, so you can see which of them you have actually been tested on and which have never been asked.
Point mutations, insertions, deletions and chromosomal changes. Frameshift mutations are usually most damaging because they alter every codon downstream, not just one.
Using living systems to make products: fermentation, selective breeding, recombinant DNA and CRISPR. The mechanisms differ enormously and conflating them loses marks.
Applying a named technology to a stated problem, such as diagnosing a disorder or producing insulin, and justifying that choice over the alternatives.
GMOs in agriculture and medicine, evaluated on yield, risk, and ecological consequence. A judgement that ignores one side of the evidence is not an evaluation.
Variation exists, selection acts on it, and allele frequencies change across generations. Selection acts on phenotypes, never directly on genes.
Reproductive isolation, usually following geographic separation, allows divergence until interbreeding is no longer possible. The evidence is what makes a speciation claim testable.
Investigating factors that alter mutation frequency, and distinguishing a mutagen's effect from natural background variation.
Modelling selection pressure on a population and evaluating whether the observed change could be explained by chance alone.
HSC Biology - Trial Paper Shape is 100 marks in 180 minutes. Questions on Module 6: Genetic Change are not one shape repeated: the command word decides what the marker is looking for, and the mark value decides how much of it. These are the ones Biology uses.
Dux writes practice for this module in exactly these shapes, so the drill is the same task the paper sets — not a general knowledge quiz with the module name on it.
Module 6: Genetic Change is module 2 of 4 in Biology. Students routinely lose marks because a question spans two modules, so the neighbouring modules are worth reading next to this one.
Dux diagnoses Biology dot point by dot point, then writes questions in the shape this course marks. Written answers come back marked against the bands.