Question
What is called microbody? Write any four differences between 80S and 70S ribosomes.
| S.No. | Symptoms | 70S | 80 S |
| 1. | Sedimentation coefficient | 70 S | 80 S |
| 2. | Molecular weight | $2.7\times10^{6}$ daltons | $4.5-5.00\times10^{6}$ daltons |
| 3. | Size | 18 nm | 20-22nm |
| 4. | Larger subunit | ||
| (a) Sedimentation coefficient | 50 S | 30 S | |
| (b) Molecular weight | $1.8\times10^{6}$ daltons | $3.6\times10^{6}$ daltons | |
| (c) Types of RNA | 23 S | 28 S | |
| 5. | Smaller subunit | ||
| (a) Sedimentation coefficient | 30 S | 40 S | |
| (b) Molecular weight | $0.9\times10^{6}$ daltons | $1.5\times1.8\times10^{6}$ daltons | |
| (c) Types of RNA | 16 S | 18 S | |
| (d) Proteins | 21 | 30 |
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