A sunburned person has lots of cells undergoing millosis, which will cause: Multiple Choice replication of new DNA copies, so that metosits will further grow new skin cells. repairing and replacing the damaged cells, in the healing process of the skin. modifying new cells that will have differert specualties than the onginal damaged cells. developing new stem cells that will give rise to new skin cells.
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repairing and replacing the damaged cells, in the healing process of the skin. modifying new cells that will have different specialties than the original damaged cells. developing new stem cells that will give rise to new skin cells Show more…
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Excess exposure to the sun can lead to skin cancer due to mutations in the DNA of your skin cells. Which of the following explains why this type of cancer cannot be inherited by the offspring of someone with skin cancer?
Anand J.
Ultraviolet (UV) radiation is known to damage the skin; excessive exposure can cause enough damage to stimulate acute inflammation (sunburn). Histologic examination of the epidermis shows a layer of keratinocytes that have undergone premature apoptosis (killed themselves before they would normally have died) and a lack of Langerhans cells in the affected region. Severe sunburns are followed several days later by non-bleeding blistering and peeling of large patches of skin. In the following weeks, the epidermis becomes thicker and darker (tan!). Hypothesize about which layers and/or sublayers of the skin are primarily affected, and why the blistering, peeling, thickening, and darkening occur. Be sure to explain your reasoning. This answer requires a logical hypothesis based on what we've learned about the specific microanatomy of the skin; it does not require "THE" correct answer.
Josee P.
Select all the choices below that give a way that DNA can be repaired. Chromosomes can be recombined to remove mutations. DNA polymerase corrects errors during replication by proofreading. After replication, incorrectly paired bases can be excised and replaced. The cell can commit programmed cell death (apoptosis).
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