DNA plays four key roles in cells: (1) it carries the genetic instructions for making proteins, (2) it is the blueprint for RNA, (3) it is the template for DNA replication, and (4) it undergoes transcription to make messenger RNA. These roles are enabled by DNA's double-helix structure which allows it to stably store and replicate genetic information. The document provides a homework assignment on DNA that involves explaining DNA's roles and structure, matching terms to descriptions, comparing messenger RNA, transfer RNA and ribosomal RNA, transcribing a DNA sequence, translating an mRNA sequence, and completing a table after reviewing pages from the textbook and watching an animation on transcription and translation.

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1. Explain the four roles that DNA plays in cells? How are these roles influenced by DNA’s
structure? Be sure you demonstrate your understanding of DNA’s structure in your
answer.
2. Match the terms with the most suitable description.
3. Briefly explain the differences among messenger RNA, transfer RNA and ribosomal
RNA in terms of the roles they play in transcription and translation and where they are
found in the cell.
4. Using the genetic code table (Fig 10.11 on p 180), take the following DNA sequence and
complete the following
5. Part of the coding sequence of a gene produces an mRNA sequence of
6. Review pp 178-185 in your book and view the following animation. Then complete the
following table. You may need to watch it the video more than once to catch the details.