Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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
Transcribed Image Text:**Image Description and Explanation:**
The image is a diagram representing the process of transcription in biology. It is divided into steps, visually explaining the conversion of DNA to RNA.
1. **DNA Double Helix**: The top of the diagram displays the DNA double helix, which is the source of the genetic code.
2. **Separation of Strands**: The DNA strands are separated to allow the transcription machinery access to the genes.
3. **Binding of Transcription Factors and RNA Polymerase**: Transcription factors bind to specific regions on the DNA, depicted as various colored shapes, facilitating the attachment of RNA polymerase, the enzyme responsible for transcribing DNA into RNA.
4. **Initiation of Transcription**: The RNA polymerase moves along the DNA template strand, incorporating nucleotides to form a new RNA strand.
5. **Elongation**: RNA polymerase continues to add nucleotides in the growing RNA strand, elongating the transcript based on the DNA template.
6. **Completion and Release**: Once transcription is complete, the RNA strand is released, and the DNA rewinds back into its double helix structure.
This figure is critical for understanding how genetic information is converted into functional molecules in cells, a fundamental aspect of gene expression and regulation.
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