Question

Individuals who spend long periods over many years developing a tan eventually acquire thick and wrinkled skin. Give a molecular example of what happens to DNA upon exposure to light.

A) Photodimerization
B) Hydrolysis
C) Oxidation
D) Polymerization

Answer 1

Exposure to UV light can cause a molecular change in DNA known as photodimerization, which can lead to mutations and increase the risk of skin cancer. DNA double helix structure caused by the crosslinking of two adjacent thymine bases. This type of molecular change can lead to mutations and increase the risk of skin cancer.

Step-by-step explanation:

Exposure to UV light can lead to a molecular change in DNA known as photodimerization. When individuals are exposed to UV light, thymine dimers can form. Thymine dimers are distortions in the DNA double helix structure caused by the crosslinking of two adjacent thymine bases. This type of molecular change can lead to mutations and increase the risk of skin cancer.

Exposure to UV light can cause a molecular change in DNA known as photodimerization, which can lead to mutations and increase the risk of skin cancer. DNA double helix structure caused by the crosslinking of two adjacent thymine bases. This type of molecular change can lead to mutations and increase the risk of skin cancer.