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DNA sequencing; Expression cloning; Fluorescence in situ hybridization; Lab-on-a-chip; Comparison of nucleic acid simulation software; Northern blot; Nuclear run-on assay; Radioactivity in the life sciences; Southern blot; Differential centrifugation (sucrose gradient) Toeprinting assay; Several bioinformatics methods, as seen in list of RNA ...
Relative to benzene, aniline is "electron-rich". It thus participates more rapidly in electrophilic aromatic substitution reactions. Likewise, it is also prone to oxidation : while freshly purified aniline is an almost colorless oil, exposure to air results in gradual darkening to yellow or red, due to the formation of strongly colored ...
DNA extraction is the process of isolating DNA from the cells of an organism isolated from a sample, typically a biological sample such as blood, saliva, or tissue. It involves breaking open the cells, removing proteins and other contaminants, and purifying the DNA so that it is free of other cellular components.
For example, some compositions of reagents are suitable for obtaining long double-stranded DNA or short single-stranded RNA. A wide variety of starting biological material are available, including whole blood , blood serum , buffy coat , urine , feces , cerebrospinal fluid , sperm , saliva , tissues , cell cultures , food products , or vaccines .
Aniline absorbs in the K (220 - 250 nm) and the B (250 - 290 nm) bands exhibited by benzenoid compounds. The K and B bands arise from π to π* transitions as a result of the a group containing multiple bond being attached to the benzene ring. When dissolved in ethanol, λ max for aniline is 230 nm, but in dilute aqueous acid λ max is 203 nm ...
Double-stranded DNA fragments naturally behave as long rods, so their migration through the gel is relative to their size or, for cyclic fragments, their radius of gyration. Circular DNA such as plasmids, however, may show multiple bands, the speed of migration may depend on whether it is relaxed or supercoiled. Single-stranded DNA or RNA tends ...
The widespread adoption of DNA testing will enable a new model of personalized healthcare that determines the treatment we get and the drugs we take based on our specific genetic code, 23andMe CEO ...
[2] for example, to extract limonene (boiling point 176 °C) from orange peels. Steam distillation once was a popular laboratory method for purification of organic compounds, but it has been replaced in many such uses by vacuum distillation and supercritical fluid extraction. It is however much simpler and economical than those alternatives ...