PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY
Human chromosome 14. Print-out showing the banded regions of human chromosome 14. Humans have 23 pairs of such chromosomes in their cells, making a total of 46 chromosomes. The chromosomes are a condensed form of the genetic material DNA (deoxyribonucleic acid). Each chromosome can be identified by its unique banding pattern. Each banded region can be identified with particular genes (short sections of DNA). Chromosome 14 in humans contains 886 genes, but also, like other chromosomes, large amounts of 'junk' DNA. The genes that have been identified on chromosome 14 include ones for Alzheimer's disease, Niemann-Pick disease, and thyroid disorders. This diagram was produced by Genoscope d'Evry (Genopole), France.
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