Multimedia Gallery
DNA Sequencing Process (Step 5)
Shown here is step 5 in the DNA sequencing process--the end result. Once the gel plate has been moved to the DNA sequencer (see Step 4), the sequencer produces the images that allow researchers to see the nucleic acid sequence. Each color represents one of the four base chemicals that make up DNA: A (adenine), G (guanine), C (cytosine) and T (thymine). In this image, one of the lanes on the gel image is translated into a chromatogram (the lane on the far left). The DNA sequencing process makes it possible for researchers to discover the amino acid sequence in a substance. [Image 5 of 5 related images. Back to Image 1.]
More about this Image
The work pictured in this series of images was performed at the DNA Sequencing Facility at Virginia Tech. Several of the researchers at the facility are National Science Foundation grantees. University facilities such as this one make it possible for students and faculty to perform hands-on research, make discoveries and earn awards and grants. (Year of image: 2000)
Credit: Gerald Baber, Virginia Tech
Images and other media in the National Science Foundation Multimedia Gallery are available for use in print and electronic material by NSF employees, members of the media, university staff, teachers and the general public. All media in the gallery are intended for personal, educational and nonprofit/non-commercial use only.
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
Also Available:
Download the high-resolution JPG version of the image. (932 KB)
Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.