File:Gene expression.PNG
Gene_expression.PNG (600 × 369 pixels, file size: 262 KB, MIME type: image/png)
Summary
There are two major steps in making a protein. The first is transcription, where the information coded in DNA is copied into RNA. The RNA nucleotides are complementary to those on the DNA: a C on the RNA strand matches a G on the DNA strand.
The only difference is that RNA pairs a nucleotide called uracil (U), instead of a T, with an A on the DNA.
A protein machine called RNA polymerase reads the DNA and makes the RNA copy. This copy is called messenger RNA, or mRNA, because it delivers the gene's message to the protein-producing machinery.
Copyright status
This image is public domain because it was first published by the National Institutes of Health.
Source
http://publications.nigms.nih.gov/thenewgenetics/chapter1.html
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:59, 25 October 2007 | | 600 × 369 (262 KB) | Ashcraft (talk | contribs) | There are two major steps in making a protein. The first is transcription, where the information coded in DNA is copied into RNA. The RNA nucleotides are complementary to those on the DNA: a C on the RNA strand matches a G on the DNA strand. The only dif |
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