NEW YORK (GenomeWeb) – An undergraduate research team at Pennsylvania State University has developed an inexpensive method to produce reference molecular weight markers, or DNA ladders, for gel electrophoresis studies.

The method, published late last week in the journal Nature Scientific Reports, uses two plasmids developed by the Penn State team which have the ability to produce DNA fragments ranging from 50 to 10,000 base pairs in length.

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The New York Times reports that as China invests in science, it also is dealing with research fraud.

In PLOS this week: transcriptome study of a cold-tolerant plant, deep sequencing of clinical influenza A samples, and more.

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