1. He is remembered chiefly for the make of car double helical gears. 2. "' A-DNA "'is one of the possible double helical structures which DNA can adopt. 3. Two main turbines were arranged in series and drove a shaft through double helical gears. 4. A double helical gear can be thought of as two mirrored helical gears joined together. 5. However, double helical gears are more difficult to manufacture due to their more complicated shape. 6. The Isob derivative interacts with the DNA leading to deformation of the right handed double helical structure. 7. She wrote a series of three draft manuscripts, two of which included a double helical DNA backbone. 8. When the DNA double helix is treated with denatured agents, the interaction force holding the double helical structure is disrupted. 9. Citro�n bought the patent for very little money, leading to the invention that is credited to Citro�n : double helical gears. 10. Following the publication of the double helical structure in 1953, Wilson participated in the refinement of the DNA structure in Wilkins'group.
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