Discussion
The word, used for the small solid supports onto which are spotted hundreds of thousands of tiny drops of DNA that can be used to screen gene expression, is
Answer: C
Correct answer: DNA microarrays
A microarray carries thousands of DNA spots on a slide, and labelled sample nucleic acid hybridises to whichever spots match it. The pattern of binding shows which genes are being expressed, so the transcription of a whole genome can be surveyed in one experiment.
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