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DNA and T lymphocyte, CGI and SEM

DNA and T lymphocyte, CGI and SEM

F021/6372

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Credit

STEVE GSCHMEISSNER & KEITH CHAMBERS / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER & KEITH CHAMBERS / SCIENCE PHOTO LIBRARY

Caption

Combination computer generated image (CGI) with scanning electron microscopy (SEM) showing DNA molecules and a T lymphocyte. The molecules of DNA (deoxyribonucleic acid) consists of a long double helix of phosphates and sugars, connected by pairs of nucleotide bases. These nucleotide base pairs form the rungs of the spiral ladder seen here. The sequence of these base pairs form the genetic code that is the basis of all life on Earth. An individual's genetic sequence controls their growth and development, and it is passed on to their children. Variations in the genetic sequence during millions of years of evolution have produced the diversity of life on Earth. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus.

Release details

Model release not required. Property release not required.

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