2) Arm (Bio-531/534,536) ₯
Spacer(Bio-541/544,549,550)
Put the Arms and Spaces upwards alternately into the Shaft. Put a Spacer (longer one Bio-541 is desirable) after the last Arm and fasten firmly with Plain Washer (Bio-572), Spring Lock Washer (Bio-573) and Hexabon Cap Nut. (Bio-571) (Fig-5)
 - Each Arm has protrusions on top and underside. Place the Spacers to fit the protrusions.
 - Use Hexagon Nut (Bio-574) if there remains a loose space at the threaded end of the Shaft.
Fig. 5
The Arms thus assembled will form as follows, when viewed from above.
|
Fig. 3 (Left) / Fig. 4 (Right)
Arms and Spacers are made up to the above specifications
Fig. 6
|
- DNA-A : The Arms form a helical configuration, clockwise in helical progression, in which adjacent Arms are displaced successively around the axis by an approximate angles 32.73and the 11th Arm takes
the same direction with that of the bottom positioned Arm.
- DNA-B : Forming a helix configuration clockwise, displaced 36, and the 10th Arm takes the same direction with bottom positioned Arm.
- DNA-Z : Forming a helix configuration counter-clockwise, displaced 30, and 12th Arm takes the same direction with bottom positioned Arm(Fig6).
- Double Helices RNA : Forming same as DNA-A.
- Triple Helices DNA : Forming a helix configuration clockwise, displacaces 30, and 12th Arm takes the same dirsction with bottom positioned Arm.
|
| Nos of
Arms | Nos of
Spacers | Arms are
displaced |
|---|
| A-DNA | 17 | 16 | 32.73E |
| B-DNA | 15 | 14 | 36E |
| Z-DNA | 18 | 17 | -30E |
| Double helices RNA | 17 | 16 | 32.73E |
| Triple helices RNA | 18 | 17 | 30E |
|
