Giant chromosomes, light micrograph P657 / 0037

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Giant chromosomes, light micrograph P657 / 0037

Giant chromosomes. Light micrograph of giant (polytene) chromosomes from a fruit fly (Drosophila busckii). These chromosomes are formed from repeated rounds of DNA (deoxyribonucleic acid) replication without nuclear division. A process known as endoreduplication. Identical strands sit side by side. The characteristic banding pattern corresponds to areas of high and moderate DNA density. The polytene chromosomes increase cell volume and metabolic rate, as there are more genes to be expressed. The size of the chromosomes also allows for easy study by scientists. Magnification: x190 when printed at 10 centimetres wide

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 9303137

© POWER AND SYRED/SCIENCE PHOTO LIBRARY

Animal Body Banded Bands Chromosome Chromosomes Drosophila Busckii Fruit Fly Genetic Giant Magnified Image Microscopic Subjects Polytene Strand Strands Deoxyribonucleic Acid Genetics Light Micrograph Light Microscope

EDITORS COMMENTS
This print showcases the intricate beauty of giant chromosomes from a fruit fly, scientifically known as Drosophila busckii. These chromosomes, formed through a process called endoreduplication, are composed of repeated rounds of DNA replication without nuclear division. The result is identical strands sitting side by side in a characteristic banding pattern that corresponds to areas of high and moderate DNA density. The polytene chromosomes depicted here play a crucial role in increasing cell volume and metabolic rate due to their abundance of genes waiting to be expressed. Their large size also makes them easily accessible for study by scientists, enabling deeper insights into the genetic makeup and functioning of these tiny organisms. Magnified at x190 when printed at 10 centimeters wide, this light micrograph offers an up-close view into the fascinating world of biology and genetics. It unveils the complex structure and organization within these microscopic subjects while highlighting the significance of DNA in shaping an animal's body. Captured by Power and Syred for Science Photo Library, this image represents both artistry and scientific exploration. It serves as a testament to humanity's relentless pursuit of knowledge about our own existence as well as other life forms on Earth.

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