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Denaturing Gel is an agarose or the acrylamide gel run under conditions which destroy the secondary or tertiary protein or RNA. For protein, this generally means the inclusion of 2-ME (which reduces disulfide bonds amongs cysteine residues) and SDS and/or urea in the acrylamide gel. For RNA, this commonly means that the inclusion of formaldehyde or glyoxal to destroy the higher ordered RNA. In DNA sequencing gels, urea is included for denaturing dsDNA to ssDNA strands. In denaturing process of gels, macromolecules tend to be separated on the basis of size and charge, while shape and oligomerization of the molecules are not significant. Contrast with the Native Gel.
How Proteins can be Classified? I. Shape and size: fibrous proteins and globular proteins. Fibrous proteins play structural roles in organisms. Globular proteins consist of lo
Basic Physical Concepts of Plant Water Relation The main idea of this section is to explain the concept of chemical potential of water or water potential and the effect of var
Q Lower Oesophageal Sphincter? Competency of LES (Lower Oesophageal Sphincter) is important. The pressure of this sphincter is controlled by many factors, one of which is hormo
Some species of plant are strongly adapted to pollination by certain insects. Characteristics which are regarded as adaptations to pollination by bees are: ( a) white o
Rainfall is high, sometimes higher than tropical rain forests but seasonal. There are pronounced wet and dry periods, and so are winter and summer seasons. The soils are brown in c
Q. What are the main functions of the cytoskeleton? As the name indicates, the cytoskeleton is accountable for the support of the normal shape of the cell it also acts as a fac
Blood Collection: Blood for analysis may be obtained from veins, arteries, or capillaries. Venous blood is usually the specimen of choice, and venipuncture is the method for
Celia is a nurse in a geriatric ward. She noticed that older persons in her care are having problems sleeping at night. She decided to introduce non-pharmocologic ways of relaxat
Contraceptive Pill - Reproduction About sixty million women in the world are currently using oral steroid contraceptives. These contraceptives usually consist of a synthetic
Explain the Methodology for seliwanoff test? Take 5 ml of seliwanoff's reagent in a test tube. Add 5-6 drops of the glucose solution and heat the mixture to boiling for about 3
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