Biology · Biomolecules and Techniques
If a pure ribosomal preparation from E. coli is sedimented under analytical ultracentrifugation at a high Mg2+ concentration (e.g., 10 mM), the subunits associate and the preparation predominantly sediments as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12 peaks of 30S and 50S enclosing more area
- 23 peaks at 70S, 50S, and 30S
- 31 peak at 70S✓
- 4No sedimentation peak at all
Correct answer
1 peak at 70S
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