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DNA microarray

DNA microarray

G210/0908

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Credit

ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY

Caption

DNA microarray, illustration. DNA (deoxyribonucleic acid) microarray technology allows biologists to study thousands of genes at once. An array of DNA sequences for a particular set of genes is created, fixed to a supporting slide or chip. Each gene's position in the array is known. Samples of unbound DNA or mRNA (messenger RNA) are then labelled with differently-coloured fluorescent markers and added to the chip. The genetic material in the samples binds to sites on the array which have a matching (complementary) sequence. The pattern of colours is then analysed. Microarrays can be used to study gene expression or detect mutations.

Release details

Model release not required. Property release not required.

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