MCQ
What is the position of oldest secondary phloem?
- AJust outside the pericycle
- BJust outside the vascular cambium
- ✓Just below the pericycle
- DBelow the vascular cambium
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$R-$ Tropomyosin is a rod - shaped fibrous protein. Tropomyosin forms two helical strands, which are wrapped around the $G-$ actin.