1. The powder immediately ignited and set off a chain reaction of explosions.

2. The Government fear the strike may produce a chain reaction in other industries.

3. It set off a chain reaction in the international money markets.

4. The change of plan set off a chain reaction of confusion.

5. The war risked setting off a perilous chain reaction that would endanger the whole world.

6. The slump on Wall Street set up a chain reaction in stock markets around the world.

7. That sets off a chain reaction of difficulties.

8. The atom splits, starting a nuclear chain reaction.

9. Metaphor: e.g. chain reaction 3.

10. Alu polymerase chain reaction is enormously valuable.

11. This is the famous nuclear chain reaction.

12. Instability would spread like a chain reaction.

13. This continuing process is called a chain reaction.

14. In 1942, the world's first nuclear chain reaction took place in Chicago.

15. In a chain reaction on a world scale, prices on innumerable commodities skyrocketed within weeks.

16. The other simple analogy is to the chain reaction of nuclear physics.

17. Details of the polymerase chain reaction are given in a previous publication.

18. Bombs in the magazine detonate in chain reaction in a split second.

19. Interstate 35 was closed following a chain reaction crash that involved 93 vehicles.

20. Products of the chain reaction were fractionated by size in agarose gels to detect the presence of insertions or deletions.

21. His answer sparked a chain reaction that led, almost forty years after the article was published,(Sentencedict.com ) to the Macintosh computer.

22. This short call sets off a chain reaction of events.

23. The demise of Woosung could have a chain reaction on other subcontractors relying on a government helping hand, analysts said.

24. Polymerase chain reaction, however, is a powerful technique capable of amplifying specific target DNA sequences by a factor of 10.

25. The chain reaction is self - sustaining.

26. An atom bomb is triggered by a chain reaction.

27. A sudden drop on Wall Street can set off a chain reaction in other financial markets.

28. The authorities have so far managed to prevent a chain reaction.

29. The splitting of an atom sets off an explosive chain reaction.

30. When this was applied to tissue sections, however, most samples were found to inhibit the polymerase chain reaction.