✍ Scribed by Patricio Fernández-Silva; José A. Enriquez; Julio Montoya
No coin nor oath required. For personal study only.
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## Abstract The organisation of mammalian mitochondrial DNA (mtDNA) is more complex than usually assumed. Despite often being depicted as a simple circle, the topology of mtDNA can vary from supercoiled monomeric circles over catenanes and oligomers to complex multimeric networks. Replication of mt
A study of sedimentation and buoyant density of Okazaki fragments from mammalian chromosomes along with electron microscopic studies indicate that fragments from about 200 to 1200 nucleotides long may have RNA segments covalently attached. The fragments in some CsCl isopycnic gradients banded in two
## Abstract The chromosomes of eukaryotic cells possess many potential DNA replication origins, of which a subset is selected in response to the cellular environment, such as the developmental stage, to act as active replication start sites. The mechanism of origin selection is not yet fully unders