When did dna testing start?

Answer Though DNA (deoxyribonucleic acid) was discovered in 1953, it was not used for testing until much later. RFLP (restriction fragment length polymorphism) was the first type of testing that used DNA ... Read More »

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When did radon testing start?

Radon is a naturally occurring gas found in the Earth's crust. It is produced by the natural decay of the element radium. Testing for radon first began in uranium mines during the middle of the las... Read More »

Having trouble getting my mower to start this year, the engine doesn't want to turn over, when testing for?

Sounds like you may have a old battery with little cranking power but if you just want to get it running you can jump it with a 12V car battery and you can crank it all day but I would also give it... Read More »

How to Start a Drug Testing Service?

If you want to be a part of an industry that is in increasing demand, learning how to start a drug testing service can offer you a viable business opportunity. With more and more companies adopting... Read More »

How to Start a Radon Testing Business?

Radon, a radioactive gas that's formed in the ground during the natural decay process of uranium, cannot be seen or smelled but is present in hundreds of thousands of buildings and is responsible f... Read More »