Biology 9700/41 Oct Nov 2018 | Cambridge AS Level Past Papers With Mark Scheme

1. Conservation strategies for critically endangered species, including Bali starling recovery and genetic biodiversity implications.

2. Genetic cross analysis in Drosophila, statistical tests for phenotypic ratios, and linkage explanations based on observed deviations.

3. Mechanisms of genetic variation through meiosis, including crossing over and independent assortment during gametogenesis.

4. Herbicide resistance evolution in Amaranthus tuberculatus, assessing mutation impacts and statistical validation using t-tests.

5. Speciation processes in Mecyclothorax beetles, influenced by habitat isolation and microhabitat differentiation on Hawaiian islands.

6. Gene therapy for Leber's congenital amaurosis using viral vectors, with advancements in AAV engineering for safer delivery methods.