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Clone (verb) is the action of duplicating the genetic material within a vector. To clone the piece of DNA, one would insert it into some type of the vector (like, a plasmid) and put the resultant construct into a host (generally a bacterium) so that the plasmid and insert replicate with the host. An individual bacterium is made isolated and grown and the plasmid containing the "cloned" DNA is re-isolated from bacteria, at which point there will be many millions of copies of the DNA - essentially an limitless supply. Actually, an investigator wishing to clone some gene or cDNA rarely has that DNA in a purified form, so practically speaking, to "clone" something involves screening a cDNA or genomic library for the desired clone. See also "Probe" for a description of how one might start a cloning project, and "Screening" for how the probe in used.
One can also clone more complex organisms, with considerable difficulty. The much-publicized Scottish research that resulted in the sheep 'Dolly' exemplifies this approach.
Explain Observation or Inference required for osazone test? 1. Crystals of different shapes will be seen. Glucose and fructose give needle shaped crystals and galactose gives f
What is Benedict's Test and its Principle? This test is answered by all reducing sugars with a free aldehyde or ketone groups. Monosaccharides possess a free aldehyde or ketone
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Definition of old age? The exact timing of the onset of the ageing process cannot be ascertained because the effect of age varies among different individuals. However, the chr
Q. Show Upsloping ST-Segment? There are few subjects in exercise literature that has generated more controversy than the significance of up sloping ST-segments. The up sloping
DIFFERENT PHASES OF SPERMATOGENESIS Spermatogenesis complete into two phases. 1 . Spermatocytogenesis The entire process can be divided into three phases : (i
What is the significance of Malpighian tubules? Excretory structures found in insects and some spiders. Though similar in appearance and function the two aren't homologous. Mal
Organism:-Fungi Advantages:- Easy to harvest from culture medium. Texture of the fungi improves the functional properties of proteins. Disdvantages:-
TYPE S OF BONE - On the basis of its texture , a bone is of two types - Spongy or cancellous or tubercular bone and Compact or periosteal or dense bone.
State the term in brief -Asconoid sponge? Of the three different sponge architectures, it is the simplest. It comrpsies a central choanocyte lined spongocoel which opens to the
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