By Robert L. Weber
This anthology presents an perception into the wit and mind of the medical brain via a mix of fun and critical contributions written via and approximately scientists. The contributions checklist altering attitudes inside technology and reflect the interactions of technology with society.
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Extra resources for A Random Walk in Science,
In this case, genetic information becomes hereditary. Analogous to the way the flow of information is directed from the DNA of one cell to the DNA of daughter cells, it is also directed from one organism to another. This flow is connected with the process of reproduction, and ensures the long-term existence of populations of cells, organisms, and species. 6. Intragenomic and Intergenomic Information Flows. Intragenomic transformation and transfer of information occurs during reproduction, and is associated with the infinite number of possible integrations of a father’s and mother’s genome, the great number of variations of DNA recombination during meiosis, and many variations of chromosome disjunction.
This was very likely at a time when only prokaryotes existed, which utilized derivatives of their own genomes as a way of exchanging genetic information. In other words, viruses and their analogues (viruses, viroids, phages, and plasmids) formed as the global mechanism of transfer and exchange of genetic information between the genomes of various cells and within an individual cell as well (transposons, IS elements). Mobile genetic elements unite all discrete genomes into the integrated information space, where any NA segment can be transferred to any part of the global genome.
Thus, viruses and their analogs are the instruments of the infinite evolutionary process (see Fig. 6). Viruses are very labile. They evolve constantly in concourse with the development of living organisms. At the present time, many mobile genetic elements are probably the competent representatives of discrete genomes of all the cells and organisms that inhabit the Earth. For example, according to different sources, between 8 and 20 % of ordered nucleic acids in the human genome are similar to those found in retroviruses.