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A Unity and Diversity
✓
A1.1 Water
›
A1.2 Nucleic acids
A2.1 Origins of cells
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A2.2 Cell structure
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A2.3 Viruses [HL only]
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A3.1 Diversity of organisms
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⌕Choose a lesson stepA1.2.1 DNA as genetic material
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IB Biology
A1.2 Nucleic acids
68%
Secure across lessons, practice and recent paper attempts.
24
questions tried
6
weak points
+11%
paper marks
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Review base pairing, then practice with a focused Paper 2 set.
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