ATARMAxxing
QCE BiologyPractice Examination 15
| Reading time | 15 minutes |
| Writing time | 2 hours |
| Total marks | 97 |
| Questions | 38 |
| Structure | Section A — 20 Q, 20 marks · Section B — 7 Q, 27 marks · Section C — 11 Q, 50 marks |
This paper covers
- Parapatric speciation and gene flow in sunflower hybrid zones (southern Queensland)
- Reproductive isolation mechanisms: pre-zygotic and post-zygotic barriers
- Modes of speciation: allopatric, parapatric, sympatric
- Allele frequency change and Hardy-Weinberg equilibrium
- Natural selection types: directional, stabilising, disruptive
- Microevolution and macroevolution
- Adaptive radiation and divergent evolution
- Molecular phylogeny and cladistics
- Linnaean taxonomy and binomial nomenclature
- Biodiversity indices: Simpson's Diversity Index, species richness, evenness
- Energy flow across trophic levels and ecological efficiency
- Biogeochemical cycles: nitrogen, carbon, water
- Ecological niches and interspecific interactions
- Primary and secondary succession
- DNA structure, replication, and mutation types
- Meiosis as a source of genetic variation: crossing over, independent assortment
- Transcription and translation (gene expression)
- Epigenetic mechanisms and transcription factors
- Inheritance patterns: monohybrid, dihybrid, sex-linked, polygenic
- Biotechnology: PCR, gel electrophoresis, recombinant DNA
- Fossil, molecular, and phylogenetic evidence for evolution
- Convergent evolution and extinction
- Hardy-Weinberg calculations
- Punnett square probability calculations
- Energy transfer efficiency calculations
Students are permitted to bring into the examination the materials normally allowed for this subject. Answer all questions in the spaces provided.
This is an ATARMAxxing practice paper. It is not an official examination and is not affiliated with, endorsed by, or produced by the VCAA, NESA or the QCAA.
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