Packaged DNA molecule
Wall Art and Photo Gifts from Science Photo Library
Packaged DNA molecule
Packaged DNA molecule. Computer model showing the structure of a smoothly bent molecule of DNA (deoxyribonucleic acid) as it would appear in chromatin. Chromatin is the combination of DNA and the histone proteins (not shown) used to package it into the nucleus of a cell. The primary functions of chromatin are: to package DNA into a smaller volume to fit in the cell, to strengthen the DNA to allow mitosis, prevent DNA damage, and to control gene expression and DNA replication. In order to be packaged efficiently the DNA must be curled smoothly around the circular histones as shown here
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9217523
© LAGUNA DESIGN/SCIENCE PHOTO LIBRARY
Bending Bent Chromatin Coiled Genetic Nucleic Acid Packaged Packaging Quaternary Structure Smooth Space Fill Space Filled Spacefill Spacefilled Biochemical Biochemistry Deoxyribonucleic Acid Genetics Molecular Model Molecular Structure
EDITORS COMMENTS
This print showcases a computer-generated model of a packaged DNA molecule, revealing the intricate structure of chromatin. The smoothly bent DNA molecule is elegantly coiled around circular histone proteins, forming chromatin within the nucleus of a cell. Chromatin serves several vital functions in the cell's genetic machinery. Firstly, it efficiently packages the lengthy DNA strands into a compact form to fit within the limited space of the cell. Additionally, this packaging strengthens and protects the DNA during crucial processes like mitosis while preventing potential damage. Moreover, chromatin plays a pivotal role in regulating gene expression and controlling DNA replication. By carefully modulating access to specific regions of DNA, it enables cells to activate or silence genes as needed for proper cellular function. The molecular artwork depicted here beautifully illustrates how nature ingeniously organizes our genetic material within each living cell. This visual representation not only highlights the complex biochemical and biological aspects but also emphasizes its significance in genetics and biochemistry research. Science Photo Library has once again captured an extraordinary moment in science with this stunning image that invites us to marvel at one of life's fundamental building blocks – deoxyribonucleic acid (DNA).
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