The course

• 1

  Start here

  The ATAR examination: one paper, ten minutes reading and three hours working. Section One is 30 multiple-choice questions (30%), Section Two four to six short answer questions (50%) and Section Three extended answer, one Unit 3 and one Unit 4 question each chosen from two (20%).

  Free: A tour of the biology course
• 2

  Unit 3: DNA, genes and protein synthesis

  5 of the 30 questions on each timed multiple-choice check

  Cell division, DNA structure and replicationThe genetic code, protein synthesis and gene expressionMutations in genes and chromosomes44 questions
• 3

  Unit 3: Inheritance

  5 of the 30 questions on each timed multiple-choice check

  Meiosis and variationFree: Punnett squares, dominance and sex linkagePedigrees and probability50 questions
• 4

  Unit 3: DNA technologies

  5 of the 30 questions on each timed multiple-choice check

  PCR, gel electrophoresis, sequencing and profilingRecombinant DNA, transgenic organisms and conservation47 questions
• 5

  Unit 3: Evolution and speciation

  5 of the 30 questions on each timed multiple-choice check

  Evidence for evolution and phylogenetic treesNatural selection, drift and gene flowSpeciation, selective breeding and extinction risk57 questions
• 6

  Unit 4: Homeostasis

  5 of the 30 questions on each timed multiple-choice check

  Free: Homeostasis, feedback and thermoregulationWater, salt and nitrogenous waste; xerophytes and halophytes52 questions
• 7

  Unit 4: Infectious disease

  5 of the 30 questions on each timed multiple-choice check

  Pathogens and the diseases they causeSpread and control of infectious disease47 questions