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Blotting is the technique for detecting one RNA within the mixture of RNAs (a Northern blot) or one type of the DNA within of a mixture of DNAs (a Southern blot). A blot can prove whether that one species of RNA or DNA is present, how much is there, and its estimated size. Mainly, blotting involves gel electrophoresis, transfer to the blotting membrane (typically nitrocellulose or activated nylon), and incubating with the radioactive probe. Exposing membrane to X-ray film creates darkening at the spot correlating with the position of the DNA or RNA of interest. The darker is the spot, the more nucleic acid was present there.
Explain the largest group of bacteria Eubacteria? Eubacteria are the largest group of bacteria within Kingdom Monera. They are the "true" bacteria, what most people referred to
STOMACH It is wide, J-shaped, placed obliquely on left side in upper abdominal cavity so left kidney is slightly down ward. It is 30 cm, long and 15 cm. wide. It has g
(a) What effect does alcohol have on reaction time? (b) What other short-term effects does alcohol have? (c) What long-term effects can result from an exce
Q. What is the part of the female reproductive system where fecundation occurs? Fecundation in general occurs in the Fallopian tubes but it can also take place within the uteru
Ventilation of Tracheal System - Diffusion Gaseous exchange due to diffusion generally takes care of the oxygen needs of most small insects. Similarly fairly large but inactiv
What is an operon, and in what type of organism are operons found? An operon is a series of genes that code for exact products and the regulatory elements that control those ge
Q. What is the relation between secretion of parathormone and the calcium blood level? The parathormone increases the calcium blood level since it stimulates the resorption (re
Frenal and Muscle Attachments: Frenal attachment at the site of implant placement has to be evaluated. A high frenal attachment may have a definite pull on the gingival surroun
Q. What are the specialized structures that help the adhesion between cells? The structures responsible for the union of the epithelial cells are called cell junctions. The mai
What is a membrane? Membrane is any delicate sheet that divides one region from another blocking or permitting (selectively or completely) the passage of substances. The skin,
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