The sizes of single-strand pieces of DNA were estimated by alkaline sucrose gradient centrifugation in four tissues of C57BL/6 mice at 1–-2 months, 14 months and 22 months of age. When the DNA sizes in 14 and 22 months old mice were compared with those of the 1–2 months old group...
Detailed analysis of the radioactivity profiles obtained on sedimentation of the resulting labelled DNA fragments in alkaline sucrose gradients has provided information about the size of the growing DNA strands. The results suggest that most of the replicating units have a single-strand molecular weight...
A strand of human DNA is 2.5 nanometers in diameter. A single hemoglobin molecule is 5 nanometers across. A single bacterium is about 1,000 nanometers long. A strand of hair is about 80,000 to 100,000 nanometers wide. A sheet of paper is 100,000 nanometers thick. An ant is 5 mil...
DNA double-strand breaks measured in individual cells subjected to gel electrophoresis. However, for the very radiosensitive L5178Y-S cells, the migration of replicating DNA was reduced only slightly. For Chinese hamster V79 and Chinese hamster ovary cells, damage was repaired at a similar rate in...
Island faunas can be characterized by gigantism in small animals and dwarfism in large animals, but the extent to which this so-called ‘island rule’ provides a general explanation for evolutionary trajectories on islands remains contentious. Here we us
Colloquium Paper: Hybridization as a stimulus for the evolution of invasiveness in plants? Invasive species are of great interest to evolutionary biologists and ecologists because they represent historical examples of dramatic evolutionary and ec... Norman,C.,Ellstrand,... - 《Proc Natl Acad Sci U...
Resonant formation of DNA strand breaks by low-energy (3 to 20 eV) electrons. Science 287, 1658–1660 (2000). Article ADS CAS Google Scholar Garrett, B. C. et al. Role of water in electron-initiated processes and radical chemistry: issues and scientific advances. Chem. Rev. 105, 355...
In an animal or human cell, there could be up to 10 million ribosomes and numerous ribosomes can be connected to the equivalent mRNA strand, this structure is known as a POLYSOME.FunctionWhen it comes to the main functions of ribosomes, they assume the role of bringing together amino ...
If a DNA strand contains 20% guanine, then how much will be adenine? How many bases are present on a strand of mRNA with 25 codons? Assume that there are approximately 3,000,000,000 base pairs in the mammalian genome (genes constitute only a small portion of ...
University of Texas at AustinDavid SoloveichikUniversity of Texas at AustinSpringer, ChamWang B, Thachuk C, Ellington AD, Soloveichik D (2017) The design space of strand displacement cascades with toehold-size clamps. In: Brijder R, Qian L (eds) DNA computing and molecular programming - ...