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Explain Negative Staining Technique?
Here, a stain has a negatively charged chromophore that is repelled by the negative bacterial surface. It results in indirect staining of microbial cell. It appears as clear area surrounded by coloured background. It is used for visualizing many cell structures like capsule. Negative stains also work better under neutral or alkaline conditions. Microorganisms can also be stained either by simple staining or differential staining.
how does the universality of the genetic code make recombinant DNA technology possible
In what forms are nitrogenous wastes excreted in birds, humans and aquatic turtles respectively ? Why so, describe?
Inverse PCR is the variation of PCR which makes the amplification of DNA segments of unknown sequence that flank DNA segments of the known sequence possible; in short, total DNA i
Explain the Reproductive System? The human reproductive system produces not only reproductive organs and gametes, but also sex hormones, which have far-reaching effects on huma
When do you use the term 2' carbon and when do you use 2 carbons on a molecular structure? I need examples please!
The following histograms were produced using flow cytometry after labelling B-cell lymphocytes with propidium iodide. Histogram A is from a healthy individual while Histogram B is
Q. Is there any situation in which the DNA is made based on the RNA template? What is the enzyme involved? The process in which the DNA is synthesized having as template a RNA
Which of the following statements about hemoglobin and myoglobin structure are true? Select the five true statements. 1. By itself, heme is not a good oxygen carrier. It must be
human digestive system
Define Thin Layer Chromatography? This is an improvement over paper chromatography and uses thin layers of slurried absorbents like silica gel, alumina, cellulose, Kieselguhr,
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