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Originally posted by Outland
That means that the neat coffee cup I got from New Zealand with the globe pictured upside down wont be funny anymore in thousands of years.
4. What types of mutational DNA damage can radiation cause?
Damage to DNA is caused by photons of ultraviolet light, X rays, and gamma rays, but not by photons of lower energy (visible light, microwaves, radio waves).
The highest energy photons (X rays and gamma rays) cause the breakage of covalent bonds, leading to a variety of damaging effects on DNA.
Photons of ultraviolet light get absorbed by DNA, causing a rearrangement of covalent bonds to give the production of "pyrimidine dimers" (usually involving two thymines), as shown in Figure 7.20.
DNA damage caused by UV light, X rays, or gamma rays may kill a cell unless the damage is repaired before or during the next round of DNA replication. The mutagenic effects of these forms of radiation are primarily due to errors that occur during the repair process; i.e., the repair job is good enough to keep the cell alive but may not return the DNA to exactly the same state.
Ultraviolet (UV) light can cause different types of DNA damage...
Originally posted by Dreamstone
Here's something really neat, when the poles reverse, the ozone layer loses is potency due to lack of a "draw" concentration. Ozone layer lets more UV light in, UV light affects the DNA coding of life on earth, thus causing mutations.
Here's the cool part, the last time the poles shifted, the first humans appeared. Chew on that
"Cancer is a mutation and is expressed in our DNA coding?"
Originally posted by DEEZNUTZ
Maybe the holes in the Ozone aren't a result of "Greenhouse Gases" but of a destabilized magnetic field.