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The giant nucleus of amphibian oocytes is generally referred to as the germinal vesicle (GV). Its size allows relatively easy manual isolation from the rest of the oocyte and also presents a large target in situ for microinjection of macromolecules including plasmid DNA, RNA species, antibodies and other proteins and even whole organelles, including somatic cell nuclei. Thus the use of GVs is excellent...
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