Fig 2 – Summary diagram showing the stages of mitosis Clinical Relevance -Errors of Mitosis Errors in mitosis typically occur during metaphase. Usually, this is due to amisalignmentof chromosomes along the metaphase plate or a failure of the mitotic spindles to attach to one of the kinetochores....
Only when a cell is actively dividing are its chromosomes easily visible even under a powerful microscope. At the onset of mitosis, each chromosome exists in a replicated form, since replication must follow every division to preserve chromosome number. This gives these chromosomes the appearance of ...
Büning (1985) found that in the ovaries of oviparous aphids, the nurse cells enlarged by endomitosis (n = 28n–210n), whereas in parthenogenetic aphids, the nurse cell nuclei remain small (n = 22n–24n) and that in parthenogenetic aphids, the previtellogenic growth of oocytes...
Chinese Academy of Agricultural Sciences (Anyang City, Henan Province, China). The cotton seedlings (CCRI 49) were grown at (25 ± 1) ℃ with a relative humidity of 75% and a photoperiod of 14 h light/10 h dark. The sexual females were induced under low temperature...
Ki67 is a nuclear protein that is present during all active phases of the cell cycle (G1, S, G2 and mitosis) but is absent from resting cells (G0). Figure 1C, panel b, shows that approximately 40% of the cells were positive for this nuclear protein. In addition, Scientific ...
13 1–6), outer tapetum cells produced by mitosis of sporangial initials cell continue to divide into tapetum (Fig. 13.2–5). Spore mother cells were found to be produced in the second subdivision stage (Fig. 13-2), and 8 cells were formed in the sixth subdivision stage by meiosis (...
4. Raman Imaging of Mitosis: A Case Study As discussed in detail above, Raman-based imaging is suitable for acquiring data on spatially distributed chemical characteristics, giving a complex set of information about the compounds comprising the material under examination. Fluorescence image analysis is...
This suggests that among the floral buds that continued with growth during the drought stress, the transition to pollen mitosis 1 (TPM1) floral bud (−5 DAA) was more drought-sensitive (Figure S3A). The floral buds that occurred from 2–7 DARW never reached anthesis nor produced pollen....
Figure 2.Images of nodule sections ofsym33-3mutant plants non-treated (A) or treated with increasing concentrations of cytokinin 6-BAP such as 5 μM (B) and 10 μM (C) were obtained using a confocal microscope. Bacteria and plant cell nuclei were stained using propidium iodide. Infected ...