galley
发表于 2025-3-26 21:46:32
The mechanism of RNA chain initiation,rase. This enzyme must first recognize its binding site, which is specified directly, or indirectly, by a specific DNA sequence. Then, strand separation of a limited region of the DNA duplex, usually about one double helical turn, precedes the actual initiation of the RNA chain. Mechanistically this
CREEK
发表于 2025-3-27 03:37:14
The regulation of promoter selectivity in eubacteria, directly for protein products. These genes are transcribed into mRNA which are short-lived molecules with typical half-lives of 2–5 minutes. The transcription of genes in this class is in general regulated by DNA-binding proteins in addition to RNA polymerase, acting either to repress or activate t
我不明白
发表于 2025-3-27 08:01:32
The mechanism of eukaryotic transcription,oduces a particular class of RNA species. Each of these poly-merases requires auxiliary proteins to facilitate RNA chain initiation since, in contrast to the prokaryotic enzyme, the nuclear polymerases are unable to initiate at promoter sites by themselves.
tolerance
发表于 2025-3-27 11:05:52
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正式通知
发表于 2025-3-27 14:46:59
epresent a wide variety of professional and theoretical approaches ranging from epidemiology, neurobiology and cognitive psychology to psychiatry, neurology, education, behavioural treatment and psychoanalysis. A group of professional observers involved in the field of autism was chosen so as to cover Sweden 978-1-4899-0884-1978-1-4899-0882-7
赌博
发表于 2025-3-27 19:20:22
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Cerumen
发表于 2025-3-27 23:09:16
Electron Microscopic Studies of Receptor Localization,l distribution of receptors. Finally, to localize any receptor at synaptic sites the only reliable method is the postembedding immunogold technique. Therefore, the three immunocytochemical methods provide complementary information about the cellular, subcellular, and subsynaptic location of any rece
Vital-Signs
发表于 2025-3-28 02:04:52
Die Informatik AG,imedial in den unterschiedlichsten Formen dargeboten, verarbeitet und verschickt. Keiner sollte heute mehr allein und isoliert arbeiten; vielmehr ist computerunterstützte Gruppenarbeit angesagt. Dies alles basiert auf Maschinenmodellen, Rechnerarchitekturen, Objektorientierung und Systemarchitekture