Biology · Biomolecules
Arrange the steps of Vitamin D activation in the correct sequential order: 1. 25-hydroxylation in the liver 2. UVB-induced synthesis in the skin 3. 1α-hydroxylation in the kidney 4. Binding to vitamin D receptor
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- 11 → 3 → 2 → 4
- 22 → 1 → 3 → 4✓
- 31 → 2 → 3 → 4
- 42 → 3 → 1 → 4
Correct answer
2 → 1 → 3 → 4
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