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s, the interconnections of observed surface and underground streams, and the boundaries of the individual spring drainage basins were determined by an extensive set of tracer experiments with fluorescent dyes. This chapter is an update of the paper with the same title in the Burnsville Cove Symposiuphase-2-enzyme 发表于 2025-3-29 00:17:11
J. C. Roux,Harry L. Swinneyity of some types of adult cells to act in a seemingly embryonic fashion. In at least some species, nonepithelial cells differentiate into a number of functional cell types including spicule-secreting cells (sclerocytes), collagen-secreting cells (spongocytes), and others. Indeed, it is in part this浪费物质 发表于 2025-3-29 07:03:36
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Y. Pomeautive model for the study of basic biological questions such as cell division, replication, transcription, cell fate decisions, and more. With embryonic stem (ES) cells that can generate each cell type in the mammalian body and adult stem cells that are able to give rise to the cells within a given l万神殿 发表于 2025-3-29 19:22:49
C. Lobry,R. Lozile. The first genes to be identified whose transcription is modulated during cell cycle progression were the histone genes (1). in vertebrates, the histone genes comprise a small gene family in which there are approximately a dozen genes encoding each of the four core histones (H4, H3, H2a, H2b), an讨好美人 发表于 2025-3-29 21:17:07
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Otto E. Rösslerbstrates. Aside from enhancing our understanding of normal cellular growth controls, this new knowledge has also becn valuable in elucidating mechanisms of growth deregulation which occur in diseased states, such as cancer and, in some instances, viral or parasitic infections. The Thirteenth Washing注意到 发表于 2025-3-30 06:59:06
Hazime Morid-1970s, then to cover in brief form the resolution of those experimental questions as they now appear, and in so doing, to comment on how phosphorylation as a regulatory mechanism turns out to be the fundamental reaction that governs progression through the cell cycle in higher eucaryotes. in 1971,