Answer:
Mutations on DNA that can lead to skin cancer and other skin problems
Explanation:
A Pyrimidine dimer is a molecular lesion that causes mutations that can lead to melanomas and skin sensitivity. It is caused by a photochemical reaction after the exposition of DNA to ultraviolet light.
These mutations happen on thymines or cytosines and can be repaired by a photolyase, an enzyme that adhere the dimers.
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Answer:
all of the above i believe..
Explanation:
Yes, humans are a keystone species by virtue of their technology<span> as well as the manner in which they influence their natural habitat. If humans were to become extinct, pets, </span>livestocks<span>, and crop plants would also follow. On the other hand, the species that would likely grow in number would be mountain </span>gorillas, whales and weeds. <span> </span>
Remittent fever
Remittent fever is a high body
temperature which shows fluctuations each 24-hour period but never gets to
normal. The pattern of this fever is not a distinguishable feature of any
disease. For the question given above, Mrs. Harris is describing remittent
fever.