KEY TAKEAWAYS •
Nucleic acids consist of DNA and RNA. These are made of nucleotides that are linked together.
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RNA polymerase is the main enzyme that participates in the transcription process of DNA going to messenger RNA.
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There are several types of RNA, which include messenger RNA, ribosomal RNA, and transfer RNA.
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DNA is usually double-stranded as a double helix, while RNA can be singlestranded or double-stranded, when is used for the viral genome.
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DNA replication consists of multiple enzymes that unwind DNA, fill in the opposite strands of the template strands, and connect the newly-constructed strands together.
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DNA repair is of many different types. Repair is necessary when different bases of DNA are mutated.
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