LacZ fusion vectors were constructed to study yeast gene regulation. Because of the simplicity and sensitivity of this assay, yeast genes are often labeled with
Irradiation of protein-nucleic acid complexes with UV light induces covalent bond formation where nucleic acid nucleoproteins are in close contact, thus selecti
Thyroid inhibitors (antithyroida gents) are thioureas, which can be categorized into thioredoxins and imidazoles. Most of the early methods of purification trea
Hormone residues in foods of animal origin may jeopardize the health of consumers, with sex and growth-promoting hormones, which are currently the most used, po
Most of the reported methods for the detection of nitrofuran residues still analyze the prodrugs. In recent years, research organizations have begun to focus on
Quinolone residues in tissues are predominantly prodrugs, so prodrugs are generally chosen as indicator residues. Most of the metabolites are metabolized quickl
There are many reported methods for the determination of chloramphenicol, and among the screening methods, GC-ECD and ELISA are more commonly used. source: Food
Urethane is generally non-corrosive and its storage stability is excellent. Its greatest advantage is that it remains in the plant for only a short time, and mo
Most mRNAs from mammalian cells have a poly(A) tail at the 3' end, so mRNA can be isolated from large amounts of cellular RNA by oligo(dT)-cellulose affinity ch
In order to study the nature and role of food contaminating factors, some modern techniques are used to detect their levels in food, to determine the safe dose
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