Which device best represents the function of the transcription stage in a cell?

• A. A shredder destroying a document
• B. A scanner converting a document to a digital image
• C. A printer producing a hard copy from a computer file
• D. A photocopier making a copy of a document

Answer: (D)

Verified step by step guidance

1. Understand the concept of transcription: Transcription is the process in which the genetic information encoded in DNA is copied into a complementary RNA molecule. This occurs in the nucleus of eukaryotic cells and is facilitated by the enzyme RNA polymerase.
2. Compare the analogy options to the transcription process: Each device represents a different action, and we need to identify which one aligns with the copying of genetic information from DNA to RNA.
3. Analyze the shredder analogy: A shredder destroys a document, which does not align with transcription since transcription does not destroy DNA but rather uses it as a template.
4. Analyze the scanner analogy: A scanner converts a document into a digital image, which involves a transformation of format. While transcription involves copying information, it does not involve converting DNA into a completely different format like a digital image.
5. Analyze the photocopier analogy: A photocopier makes a copy of a document, which is the most accurate representation of transcription. In transcription, the DNA sequence is copied into RNA, similar to how a photocopier creates a duplicate of a document without altering the original.