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Part A:Arrange the steps of transcription of DNA to synthesize mRNA. Rank the steps of transcription of DNA to synthesize mRNA.1. DNA double helix unwinds to expose the nucleotide bases2. RNA polymerase identifies the start sequence3. RNA polymerase adds bases that are complementary to the DNA template4. RNA polymerase identifies the termination sequence5. mRNA strand and RNA polymerase are released

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A transcription unit is a segment of DNA that is translated into an RNA molecule and contains at least one gene.

The enzyme RNA polymerase, which binds to and moves along the DNA molecule until it recognizes a promoter sequence, catalyzes transcription.

When a gene creates a protein, transcription results in messenger RNA (mRNA), which is then used as a template for translation to create the protein. There are five steps.

First phase of transcription:

1. DNA double helix unwinds to expose the nucleotide bases

2. RNA polymerase identifies the start sequence

3. RNA polymerase adds bases that are complementary to the DNA template

4. RNA polymerase identifies the termination sequence

5. mRNA strand and RNA polymerase are released

Learn more about to transcription visit here:

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