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Zoology

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5 Feb 2009 22:20:54 IST

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how does genetic mutation occurs when we are exposed to radiations/carcinogens?

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how does genetic mutation occurs when we are exposed to radiations/carcinogens?

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tejas

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Joined: 3 Jun 2008

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5 Feb 2009 22:48:04 IST

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on exposure to highradiations...the nhighly penetrating particlesd of radiation tend to delete one or more bases leading to point mutation or mutation @ a large scale...

tejas

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5 Feb 2009 22:51:36 IST

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in cases of carnicogens.....they tend to activate oncogens which r presented already in our genes and thus cause mutations

vignesh the cooler version of newton

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6 Feb 2009 09:56:37 IST

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when a cell is exposed to radiations, many things happen.. like... radiations have energy in them ( hv = planck's constant multiplied by frequency) .. this energy is sufficient to break some bonds... and make other bonds.. eg. thymine thymine double bonds... i.e if A and T are paired and along with T the next or preceeding base is also T, then sufficient energy may break A=T bond and make T=T bond which is a type of mutation..

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