aSince the first proposal of the solenoid model of nucleosome packing, it has been generally assumed that mitotic chromosomes consist of a hierarchy of higher order packaged chromatin fibers. 从nucleosome包装螺线管模型的第一个提案,它一般假设, mitotic染色体包括高次被包装的染色质纤维阶层。[translate] ...
Which of the following occurs outside of the nucleus in eukaryotic cells? a. chromatin packing b. mRNA processing c. transcriptional control d. translational control e. posttranscriptional control What is methylation used for in prokaryotes? In eukaryotes?
The human immunodeficiency virus type 1 (HIV-1) trans-activator of transcription protein Tat is an important factor in viral pathogenesis. In addition to its function as the key trans-activator of viral transcription, Tat is also secreted by the infected cell and taken up by neighboring cells w...