Question

Which situation would be most likely to cause a dna mutation? A. A maple tree becomes dormant to prevent water loss during a drought. B. A culture of cells is placed in a chamber and exposed to high pressure for 10 hours. C. A wood frog in a lake is exposed to temperatures below 0°c during the winter months. D. A person spends one hour each day under the ultraviolet rays of a tanning bed.

Answer 1

hi its D: a person spends one hour each day under the ultraviolet rays of a tanning bed

Explanation:

PLATO

Answer 2

The correct answer is option D, that is, a person spends one hour each day under the ultraviolet rays of a tanning bed.

The UV, or ultraviolet light from the sun, us a non-ionizing radiation that can cause DNA mutations. It does this by making the formation of pyrimidine dimers. Direct destruction of DNA can take place when DNA directly absorbs a UVB photon.

The UVB light makes thymine base pairs next to each other in the genetic arrangements to combine together in the pyrimidine dimers. It has been shown that the patches of skin chronically exposed to sunlight exhibit up to 10 times more cancer-producing gene mutations in comparison to the skin, which is usually safeguarded from the sun.