Chromosomes, SEM

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Chromosomes, SEM

Chromosomes. Coloured scanning electron micrograph (SEM) of two chromosomes. The SEM is overlaid on a DNA autoradiogram background. Chromosomes contain the genetic material DNA (deoxyribonucleic acid). These chromosomes are at a stage where they have replicated. The replicate (copy) and the original are termed chromatids and align parallel to each other, joined at an area called a centromere. The 46 human chromosomes hold the DNA that carries the genetic code, unique for every individual. DNA controls the development and functioning of every living organism. The code consists of the sequence of DNA nucleotide bases, seen as the bands (black) on an autoradiogram. Magnification unknown. Science Photo Library features Science and Medical images including photos and illustrations. © POWER AND SYRED/SCIENCE PHOTO LIBRARY

Media ID 9308389

Analysis Autoradiogram Autoradiograms Band Banding Bands Base Bases Chromatid Chromatids Chromosome Chromosomes Code Codes Double Helix Genetic Line Lines Nucleotide Nucleotides Pattern Patterns Replicate Replicates Sequences Sequencing Deoxyribonucleic Acid Genetics