AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mutation of skin cells will most likely result in ____ ?
A
Offspring will have mutated cells
B
Skin cancer
C
Skin cell will not work properly
D
No change in the functioning of skin cells
Explanation: 

Detailed explanation-1: -The most common change in melanoma cells is a mutation in the BRAF oncogene, which is found in about half of all melanomas. Other genes that can be affected in melanoma include NRAS, CDKN2A, and NF1. (Usually only one of these genes is affected.)

Detailed explanation-2: -Skin cancers like melanoma have damaged DNA (mutations) in skin cells that lead to uncontrolled growth of these cells. Ultraviolet (UV) rays from the sun or tanning beds damage DNA in your skin cells. Your immune system repairs some of this damage but not all.

Detailed explanation-3: -Most skin cancers are caused by exposure to the sun. This may be long term exposure, or short periods of intense sun exposure and burning. The ultraviolet light in sunlight damages the DNA in the skin cells. This damage can happen years before a cancer develops.

Detailed explanation-4: -Melanoma is a cancer that develops from melanocytes, the skin cells that produce melanin pigment, which gives skin its color. Where is it usually found? Melanomas often resemble moles and sometimes may arise from them.

There is 1 question to complete.