鸟笼
发表于 2025-3-23 10:56:32
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perimenopause
发表于 2025-3-23 13:51:37
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Firefly
发表于 2025-3-23 19:25:27
https://doi.org/10.1007/978-3-319-55595-9 by considering the following problem. A scientific group wishes to clone in bacteria a particular human chromosomal gene. There would be no difficulty obtaining human DNA, cutting it with a restriction endonuclease, and ligating the many fragments obtained into vector molecules. This ligation mix c
endure
发表于 2025-3-23 22:37:21
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Obstreperous
发表于 2025-3-24 05:13:13
Maryna Kolisnyk,Vyacheslav Kharchenkoually associated. Cells of plants and animals contain from 1 to 100 pg of DNA per nucleus. This does not sound like a lot until one realizes that is represents 100–10,000 times as much DNA as in an . chromosome. When faced with such vast complexity, it is obviously an advantage if the DNA can be sep
negotiable
发表于 2025-3-24 09:40:17
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贪婪的人
发表于 2025-3-24 12:09:15
https://doi.org/10.1057/978-1-137-58736-7A molecules are involved in the expression of the genetic material (DNA) and are, in fact, the initial products of gene expression that go on to direct protein synthesis. Knowledge of the structure, metabolism, and mode of action of RNA in protein synthesis is therefore fundamental to our understand
Magisterial
发表于 2025-3-24 15:27:49
Ionic Liquids in the Nuclear Industry, simple, but nevertheless achieves very reproducible results and high resolution. RNA is a polyanion and will therefore migrate toward the positive electrode in an electric field. If the migration occurs through a gel matrix of carefully chosen pore size, the mobility of the RNA molecules is related
Gentry
发表于 2025-3-24 21:57:58
Jan Nill,Ulrich Petschow,Matthias Jahnckeh prokaryotic and eukaryotic systems have been developed, but for this experiment only a eukaryotic system will be considered. In 1973, Roberts and Paterson (.) demonstrated that a cell-free extract of wheat germ would faithfully translate rabbit globin mRNA and tobacco mosaic virus RNA to yield ful
杀死
发表于 2025-3-25 00:32:30
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