Coloured TEM of a plasmid of DNA
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Coloured TEM of a plasmid of DNA
Coloured transmission electron micrograph (TEM) of a closed circle or " plasmid" of DNA. A plasmid is a length of DNA that can exist apart from the chromosome, and which can replicate on its own. Occurring in both bacteria & yeast, these symbiotic pieces of DNA can be transferred from cell to cell and often act as vehicles for antibiotic resistance. In genetic engineering, plasmids were first used to carry foreign DNA spliced onto them, then introduced into a bacteria where it expressed the genetic information carried by the transplanted DNA. These experiments led to the biotechnology revolution. Magnification: x20, 000 at 6x4.5cm size
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6389685
© A.B. DOWSETT/SCIENCE PHOTO LIBRARY
Bio Technology Double Helix Electron Micrograph Genetic Genetic Engineering Plasmid Transmission Bio Chemistry Biochemical Genetics
EDITORS COMMENTS
This print showcases a coloured transmission electron micrograph (TEM) of a plasmid of DNA. The image reveals the intricate details of a closed circle or "plasmid" that exists separately from the chromosome and has the ability to replicate on its own. Plasmids are found in both bacteria and yeast, serving as carriers for genetic information and often playing a crucial role in transferring traits such as antibiotic resistance between cells. The significance of plasmids in genetic engineering cannot be overstated. Initially, scientists utilized these small DNA molecules to transport foreign genetic material spliced onto them into bacteria. Once inside the bacterial cell, this transplanted DNA would express itself by carrying out specific functions encoded within it. These groundbreaking experiments paved the way for the biotechnology revolution we witness today. At an impressive magnification level of x20,000, this 6x4.5cm print provides an up-close look at the double helix structure characteristic of DNA molecules. Its vibrant colours highlight various aspects related to transmission, biochemistry, genetics, and genetic engineering. This remarkable photograph is courtesy of Science Photo Library and serves as a testament to humanity's relentless pursuit of knowledge in unraveling life's mysteries at microscopic levels without any commercial intent involved.
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