Results for 'Karyotype'

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  1. Cytological Study of Allium Cepa and Allium Sativum.E. T. Awe & U. U. Akpan - 2017 - ActaSatech 9 (1):113-120.
    The large number of species in the Allium genus has necessitated comparative analysis of related species which has always been used in many cases to describe patterns and directions of chromosomal evolution within a group. This study was carried out to cytologically analyse two species of Allium- Allium cepa and Allium sativum. All the four stages of cell division were observed in both species, although well spread metaphase chromosomes could not be observed in A. sativum which limited the extent to (...)
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  2. Serial Endosymbiosis Theory: From Biology to Astronomy and Back to the Origin of Life.Predrag Slijepcevic - forthcoming - Biosystems.
    Serial Endosymbiosis Theory, or SET, was conceived and developed by Lynn Margulis, to explain the greatest discontinuity in the history of life, the origin of eukaryotic cells. Some predictions of SET, namely the origin of mitochondria and chloroplasts, withstood the test of the most recent evidence from a variety of disciplines including phylogenetics, biochemistry, and cell biology. Even though some other predictions fared less well, SET remains a seminal theory in biology. In this paper, I focus on two aspects of (...)
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