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  • Human chromosomes in late anaphase. At this stage the chromosomes have started to separate from each other and move towards opposite poles of the cell.
  • Human chromosomes in early anaphase. At this stage the chromosomes have started to separate from each other and move towardds opposite poles of the cell.
  • Human cells showing the stages of cell division starting with interphase second from the left on the top. Progressing anticlockwise the stages shown are: early prophase (centrosome not yet separated), late prophase (centrosome separated and DNA condensation), prometaphase (incomplete chromosome attachment), metaphase (chromosomes all attached and aligned), anaphase (chromosome separation), telophase (formation of midbody and cells begin to flatten), early cytokinesis (chromosomes decondensed and nuclear envelope reformed) and late cytokinesis (cells move apart).
  • Human chromosomes in early anaphase. At this stage the chromosomes have started to separate from each other and move towards opposite poles of the cell. The chromatin appears grey and the kinetochores are pink.
  • Human chromosomes in metaphase. The chromatin is stained red and the "glue" that holds the two chromatids together is highlighted in yellow. This glue is a proteinaceous complex called cohesin. Once all the chromosomes are attached to the spindle, the cohesin complex breaks down, allowing the two chromatids to separate and move to opposite poles of the cell.
  • Membrane spikes and ruffles on fibroblasts
  • Breast cancer cell, SEM
  • Breast cancer cell, SEM
  • Breast cancer cell, SEM
  • Breast cancer cell, SEM
  • cellular communication
  • cellular communication: cell junction
  • Clonal tracking, mouse fibroblasts
  • Chromosomes at metaphase
  • Alpha cell in the ferret retina
  • Alpha cell in the ferret retina
  • Alpha cell in the ferret retina
  • The nuclear pore
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM