In metaphase (a), the microtubules of the spindle (white) have attached and the chromosomes have lined up on the metaphase plate. During anaphase (b), the sister chromatids are pulled apart and move toward opposite poles of the cell.
Previous studies of the structure of metaphase chromosomes have relied heavily on electron micrography and have revealed the existence of a 10-nm unit fiber that is thought to generate the native 23-30-nm fiber by higher order folding. The structural relationship of these metaphase fibers to the...
RNA which is resistant in situ to ribonuclease in solutions of high ionic strength was demonstrated in interphase nuclei and metaphase chromosomes of human PHA-blasts. Since the synthesis of this RNase-resistant RNA is not affected by actinomycin D it is likely that it is of a non-ribosomal ty...
In which stage of mitosis do the chromosomes line up along the equator of the cell? A. Prophase B. Metaphase C. Anaphase D. Telophase 相关知识点: 试题来源: 解析 B。原因:在有丝分裂的中期,染色体排列在细胞中央的赤道板上。反馈 收藏
Metaphase is the third of the five phases of mitosis, which is the process in which somatic cells divide. The other phases include prophase, prometaphase, anaphase and telophase. In metaphase, replicated chromosomes align in the middle of the cell. Meio
The spatial folding of chromosomes inside the nucleus has regulatory effects on gene expression, yet the impact of genome reshuffling on this organization remains unclear. Here, we take advantage of chromosome conformation capture in combination with single-nucleotide polymorphism (SNP) genotyping and ana...
S. Alterations in metaphase durations in cells derived from human tumours. Cell Prolif. 18, 137–146 (1985). CAS Google Scholar Therman, E., Buchler, D. A., Nieminen, U. & Timonen, S. Mitotic modifications and aberrations in human cervical cancer. Cancer Genet. Cytogenet. 11, 185–...
Metaphase chromosomes fromC. crocodilus(a),C. latirostris(b),C. yacare(c),M. niger(d),P. palpebrosus(e), andP. trigonatus(f) after in situ mapping of ClaSat01-41 (group 1). The satDNA FISH signals are highlighted in green (ATTO488 labeled) or red (ATTO550 labeled) and the ch...
Facoltà di Agraria, 85100 Potenza, Italy (Received 21 February 1991; accepted 25 September 1991) Summary - A sequential QFQ-RBA banding procedure, for the first time performed on prometaphase chromosomes of cattle (Bos taurus L), is presented with the aim of establishing correlations between Q...
In contrast to those of metaphase chromosomes, the shape, length, and architecture of human interphase chromosomes are not well understood. This is mainly due to technical problems in the visualization of interphase chromosomes in total and of their substructures. We analyzed the structure of chromoso...