What are the specific effects of ultraviolet radiation on DNA?

Answer 1

when your mom and your dad love each other alot, the limo parks in the garage and than realizes that its not in right so he must reverse and redo..he reapeats this about 3 times......than 9 months later a new limo is made

Answer 2

They knock codons off your DNA. Many codons are non-essential, so knocking one or two off the strand will have no effect on your cell's day-to-day functions. However, if an essential codon is knocked off or otherwise damaged, the cell will operate according to incorrect instructions. (For instance, making skin in the middle of your liver, a.k.a. a tumor.) The "stop" codon is particularly liable to be knocked off, and if this happens, the cell will go haywire, making proteins nonstop and flooding your system. If your immune system destroys the damaged cell, all may yet be well. But if the cell divides and multiplies, then you will have many cells creating tumors and flooding your body with the wrong chemicals at the wrong time. This is the disease we call cancer. They knock codons off your DNA. Many codons are non-essential, so knocking one or two off the strand will have no effect on your cell's day-to-day functions. However, if an essential codon is knocked off or otherwise damaged, the cell will operate according to incorrect instructions. (For instance, making skin in the middle of your liver, a.k.a. a tumor.) The "stop" codon is particularly liable to be knocked off, and if this happens, the cell will go haywire, making proteins nonstop and flooding your system. If your immune system destroys the damaged cell, all may yet be well. But if the cell divides and multiplies, then you will have many cells creating tumors and flooding your body with the wrong chemicals at the wrong time. This is the disease we call cancer.

Answer 3

The DNA strands contain multiple bases which absorb light in the range of wavelengths we have designated as "UV"; the nitrogenous bases absorbs light maximally at 260nm wavelength. As a molecule absorbs light at a particular wavelength, it does so by adding the energy at that wavelength to the vibrational energy of the molecule at a particular bond. The vibration at that bond is already occurring at that wavelength or a harmonic of it so as it absorbs the energy, it begins to vibrate more strongly with the atoms on either end of the bond getting farther apart at the greatest separation of the vibration. With greater separation, the bond is more easily broken - hence damage to the DNA strand.

Answer 4

The radiation hits a DNA molecule and the part of the DNA molecule that was hit absorbs all the lights energy, causing that section to become 'excited' and vibrate rapidly so it comes loose of the rest of the DNA molecule. Most of the time it repairs itself but sometimes the DNA is permanently damaged perhaps leading to a change in the base sequence of he DNA that could cause non-functioning protiens thus putting the body at risk of cancer.

Answer 5

RadiationIonizing radiation is energy transmitted via X rays, gamma rays, beta particles (high-speed electrons), alpha particles (the nucleus of the helium atom), neutrons, protons, and other heavy ions such as the nuclei of argon, nitrogen, carbon, and other elements. X rays and gamma rays are electromagnetic waves like light, but their energy is much higher than that of light (their wavelengths are much shorter). Ultraviolet (UV) light is a radiation of intermediate energy that can damage cells (the well known sunburn), but UV light differs from the forms of electromagnetic radiation mentioned above in that it does not cause ionization(loss of an electron) in atoms or molecules, but rather excitation(change in energy level of an electron). The other forms of radiation--particles--are either negatively charged (electrons), positively charged (protons, alpha rays, and other heavy ions), or electrically neutral (neutrons).

Answer 6

Ultraviolet radiation can cause the formation of thymine dimers in DNA, which distort the DNA structure and can lead to errors during replication. This can result in mutations and potentially contribute to skin cancer development. UV radiation can also generate reactive oxygen species that can damage DNA directly.