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approximately
toxin

epigenetics

DNA activity

exposure of

Um,? Er,(語氣詞)

ps.今天的稍長，挑戰(zhàn)一下吧~

The next step was for us to go to the next generation and go to the third generation. All and the same disease still occurred. So after we did several repeats and got the third generation showing it, then a fourth generation, we thought back and realized that the phenomenon was real. We started seeing these major diseases occur in approximately 85 percent of all the animals of every single generation.
His discoveries were a revelation.
We knew that if an individual was exposed to an environmental toxin that they can get a disease they potential. The new phenomenon is that the environmental toxin no longer affects just the individual exposed, but through two or three generations down the line. I knew that epigenetics existed. I knew that it was a controlling factor for DNA activity whether the genes are silenced or not. Um, but to say that epigenetics would have a major role in disease development, so I'd had no concept for that. The fact that this could have a such huge impact and could explain a whole host of things we couldn't explain before, took a while to actually sink in.
The exposure of a single animal to a toxin was causing a whole range of diseases in almost every individual of the following generations. And because epigenetic effects have been observed in humans, this may have implications for us too.
Er, what this means then is what your grandmother was exposed to when she was pregnant could cause a disease in you, even though you didn't have an exposure, and you are gonna pass it onto your great grandchildren.

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