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The formation of pyrimidine dimers results from which of the following?

spontaneous errors by DNA polymerase
exposure to gamma radiation
exposure to ultraviolet radiation
exposure to intercalating agents

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Answer:

exposure to ultraviolet radiation is a correct answer.

Explanation:

Ultraviolet light exposure results in the formation of pyrimidine dimers. Ultraviolet radiation damage the DNA by resulting in chemical changes.

Ultraviolet radiation is absorbed by the pyrimidine bases( cytosine and thymine in DNA) and result in the formation of covalent bonds between the succeeding bases.

The formation of the pyrimidine dimers results in the distortions of DNA helix and disrupt the base-pairing during the replication of DNA which results in a mutation.

luisvaschetto

The formation of pyrimidine dimers results from exposure to ultraviolet radiation.

What is a mutagenic agent?

A mutagenic agent is any type of agent (either physical or chemical) capable of causing mutations during DNA replication.

  • Ultraviolet (UV) radiation is a type of physical mutagenic agent capable of causing mutations.  

  • The mutagenic agents can also be chemical agents (e.g., Ethidium Bromide is a chemical agent).

In conclusion, the formation of pyrimidine dimers results from exposure to ultraviolet radiation.

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https://brainly.com/question/13816258

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