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Image of color-coded tags hybridized to individual mRNA molecules and attached to a surface.The fluorescent tags consist of a single-stranded DNA scaffold annealed to a series of seven complementary in vitrotranscribed RNAs each labeled with one of four fluorophores.The linear order of the different colors defines a unique code for each gene of interest.The molecular tags are linked to gene-specific probes and used to measure directly the levels of over 500 different mRNA species in a single reaction by counting the number of times each hybridized code is detected.See Geiss et al.(p 317).
To restore its scientific credibility, the International Assessment of Agricultural Science and Technology for Development (IAASTD) should rethink its vision for biotech.
Public distaste for genetically modified crops shows little sign of abating. Tony Conner thinks he's found a solution: tailor crops to be more palatable to the public.
With the genome of the grapevine in hand, how likely are enologists and wine growers to resort to genetic engineering to tackle the problems facing viticulture? Laura DeFrancesco reports.
European governments recognize that the biotech industry is important to their economic development, but can the sector overcome the obstacles hindering its growth?
An entire bacterial genome has been reconstructed by stitching together chemically synthesized DNA fragments, bringing the prospect of an artificial living organism one step closer.
Principal component analysis is often incorporated into genome-wide expression studies, but what is it and how can it be used to explore high-dimensional data?