How can radiation exposure effect the future generations?
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Mutations caused by radiation exposure can be found even in the third generation. The results of a mouse study suggests that genetic changes resulting from exposure to high doses of radiation such as X-rays can be inherited by future generations.
Researchers led by Dr. Yuri E. Dubrova of the University of Leicester, UK exposed mice to varying doses of radiation from X-ray and neutron sources. These mice were allowed to mate with unexposed mice to produce offspring. They then analyzed the genome for traces of mutations within their genes. Children and grandchildren of exposed mice demonstrated a higher rate of mutation than the naturally occurring mutation rate from unexposed mice. The results indicated that the genetic changes are subtle and in segments of the DNA that do not have significant functions, at least in the mice they studied. Even so, authors cautioned the fact that genetic changes acquired after birth can be inherited by future generations is of concern, especially in the context of cancer formation and other genetic diseases. Authors published their findings in the May 14, 2002 issue of PNAS.
Genetic changes as a result of radiation exposure have not been previously shown to be capable of transmission into the next generations. Authors postulated that genetic changes might be present in people who had been exposed to a high dose of radiation and also in their children, but have not been detected due to the complexity of the human genome and the pronounced variations between individuals.
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Here's your answer!!
Mutations caused by radiation exposure can be found even in the third generation. The results of a mouse study suggests that genetic changes resulting from exposure to high doses of radiation such as X-rays can be inherited by future generations.
Researchers led by Dr. Yuri E. Dubrova of the University of Leicester, UK exposed mice to varying doses of radiation from X-ray and neutron sources. These mice were allowed to mate with unexposed mice to produce offspring. They then analyzed the genome for traces of mutations within their genes. Children and grandchildren of exposed mice demonstrated a higher rate of mutation than the naturally occurring mutation rate from unexposed mice. The results indicated that the genetic changes are subtle and in segments of the DNA that do not have significant functions, at least in the mice they studied. Even so, authors cautioned the fact that genetic changes acquired after birth can be inherited by future generations is of concern, especially in the context of cancer formation and other genetic diseases. Authors published their findings in the May 14, 2002 issue of PNAS.
Genetic changes as a result of radiation exposure have not been previously shown to be capable of transmission into the next generations. Authors postulated that genetic changes might be present in people who had been exposed to a high dose of radiation and also in their children, but have not been detected due to the complexity of the human genome and the pronounced variations between individuals.
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Modern technology is undoubtedly the main reason behind our present efficient lifestyle.
But the modern technology also gave us many boons and radiation is one of them.
Radiation exposure is harmful for our future generation because,
1) Radiation exposure can neutralize the reproduction capabilities of the human beings.
2) The indirect radiation exposure on the baby in the mother's womb can cause miscarriage or birth of the physically deformed babies.
3) Radiation exposure can also trigger the mutation genes which are not preferable by us.
And many more.
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