Skin cancer carries a lifetime risk nearly equal to that...

Question

Skin cancer carries a lifetime risk nearly equal to that of all other cancers combined. Following is a graph [modified from K. H. Kraemer (1997). Proc. Natl. Acad. Sci. (USA) 94:11–14] depicting the age of onset of skin cancers in patients with or without XP, where the cumulative percentage of skin cancer is plotted against age. The non-XP curve is based on 29,757 cancers surveyed by the National Cancer Institute, and the curve representing those with XP is based on 63 skin cancers from the Xeroderma Pigmentosum Registry.

Provide an overview of the information contained in the graph.

Accepted Answer

Hello everyone and welcome to today's video. So zero derma pig mental ism is a disorder in which the affected individual has a deficiency in their ability to repair the cells damaged by UV rays. This is key to solving our problem. This condition increases the risk of developing which of the following types of cancer. So let's think about it in the following way. When we are affected by UV rays, we're usually being affected by sunlight. Like when we go to the beach the sunlight is going to be hidden or skin directly as it is our first layer of protection against such a thing. Now when sunlight or when UV rays hit our skin, they're very microscopic. So they're going to be affecting the DNA of our skin cells directly causing mutations and these mutations are eventually going to lead to cancer. If not treated. Now our bodies usually have this mechanism that they end up fixing DNA damage causing by these UV rays. So we are not going to get cancer as easily. However people who have this condition are lacking or have a deficiency in the mechanism that helps them repair their selves. So they are more prone to obtaining skin cancer because of this. So our correct answer choice is going to be answer choice B. I really hope this video helped you and I hope to see you on the next one

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