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Biology (A) 8BN0/02 May June 2017

Biology (A) 8BN0/02 May June 2017

1. Cellulose and Plant Cell Walls – Identifying the monomer of cellulose, glycosidic bonding patterns, and the role of calcium pectate in middle lamella.

2. Lignin and Secondary Thickening – Determining plant tissues containing lignin and explaining how lignification affects water permeability and strength.

3. Starch Structure and Function – Analyzing how amylose and amylopectin contribute to starch’s efficiency as a storage molecule.

4. Genetics of Lupus – Examining polygenic inheritance, environmental factors affecting lupus development, and the genetic impact of X-linked recessive alleles.

5. Conservation Biology – Evaluating the genetic consequences of interbreeding in Scottish wildcats and the effectiveness of captive breeding programs.

6. Mitosis and Cancer Treatment – Calculating the mitotic index, investigating the impact of herbicides on mitotic rates, and explaining how chemotherapy disrupts spindle fiber function.

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Classification: Paper 2
Page count: 24
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Last update: 5 months ago
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