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Ddt

Ddt

(Science: chemical) this chlorinated organic insecticide was discovered by Swiss chemist Paul Muller in 1939.

ddt has been especially useful in controlling mosquitos that carry malaria, but some strains of the insects have become resistant to it. Ddt has comparatively low acute toxicity in humans (it is thought to cause cancer), but it persists for a longtime in the environment and is disastrously toxic to birds, especially top-level predators such as hawks and eagles.

The chemical interferes with the birds ability to metabolise calcium, and thus affected birds that lay eggs with fatally thin shells. Ddt has been banned in most countries, but it is still widely used on crops in latin america.


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by Ahsmeah
Tue Feb 05, 2013 10:10 pm
 
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Re: Re:

Mutation can be caused by many factors such as chemical (DDT, CCL4), radiation, ionizing etc. It mutate the DNA in cell. If only a single is mutated, it can be replicated as usual in mitosis. Thus, the neighbor cells which are previously normal will ...

See entire post
by biohazard
Tue Feb 05, 2013 1:23 pm
 
Forum: Physiology
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Views: 10168

Re:

Mutation can be caused by many factors such as chemical (DDT, CCL4), radiation, ionizing etc. It mutate the DNA in cell. If only a single is mutated, it can be replicated as usual in mitosis. Thus, the neighbor cells which are previously normal will ...

See entire post
by Ahsmeah
Mon Feb 04, 2013 10:56 am
 
Forum: Physiology
Topic: Cancer = Mutation: Stopping Mutation Would Cure Cancer?
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Views: 10168

Cancer = Mutation: Stopping Mutation Would Cure Cancer?

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See entire post
by mavis
Mon Feb 04, 2013 5:36 am
 
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Views: 10168

WHO scum - politics over lives

DDT are harmful to humans too, but the reason is probably to prevent the persists from becoming resistant. If the WHO truly wants to cut money there are a lot of bigger and fatter budget areas they could cut.

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by david23
Sat Sep 19, 2009 4:40 am
 
Forum: Ecology
Topic: WHO scum - politics over lives
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