![]() |
Science Frontiers The Unusual & Unexplained
Strange Science * Bizarre Biophysics * Anomalous astronomy
Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics
|
|
Science Frontiers is the bimonthly newsletter providing digests
of reports that describe scientific anomalies; that is, those
observations and facts that challenge prevailing scientific paradigms.
Over 2000 Science Frontiers digests have been published since 1976.
These 2,000+ digests represent only the tip of the proverbial
iceberg. The Sourcebook Project, which publishes Science Frontiers,
also publishes the Catalog of Anomalies, which delves far more
deeply into anomalistics and now extends to sixteen volumes, and covers dozens of disciplines.
Over 14,000 volumes of science journals, including all issues of Nature
and Science have been examined for reports on anomalies. In this
context, the newsletter Science Frontiers is the appetizer and
the Catalog of Anomalies is the main course.
Subscriptions
Sourcebook Project
Tel: +1 (410) 668 6047.
|
||
Knowledge Computing on behalf of Science Frontiers.
| ||
Search results for: genome22 results found.
... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The genome's responses to challenges The genome is an organism's genetic endowment. It contains instructions for the organism's growth and development, but it is not like a rigid, uncompromising computer program. Rather, the genome: "...is a highly sensitive organ of the cell that monitors genomic activities and corrects common errors, senses unusual and unexpected events, and responds to them, often by restructuring ...... Science Frontiers ONLINE No. 131: SEP-OCT 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Oh, The Complexity of it All! The headlines say that the human genome has been charted and further imply that we now can read life's total blueprint. Closer study of the announcement reveals that there still remain unreadable snippets of the genome here and there. In fact, the total number of human genes is still in doubt: maybe 30,000, some say 120,000 ...... Science Frontiers ONLINE No. 136: JUL-AUG 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Genome-map User Beware! Omissions. Amid much hullabaloo, it was announced recently that the human genome has now been mapped. To everyone's surprise, we are said to be constructed from blueprints containing only about 30,000 genes. But how accurate are these maps that were drawn up so hastily in the bitterly contested race between the publically and privately sponsored programs? How good are those computer ...4. A Third Way?... Issue Sourcebook Project Sourcebook Subjects A Third Way? A THIRD WAY? In the never-ending, ever-acrimonious "dialog of the deaf" between the Darwinists and the Creationists, we are perpetually exposed to their extreme, non-negotiable positions. The Darwinists insist upon their one-gene/one-protein genome in which random mutations slowly accumulate and adapt living things to the changing environment. The Creationists only accept a one-time, supernatural creation of "kinds" plus minor adaptations (" microevolution"). J.A. Shapiro, a professor at the University of Chicago, ...... Sourcebook Project Sourcebook Subjects The Language Of Life Popular writers on biology are fond of saying that the genes and their DNA carry all information necessary for the development of an organism and the transfer of inherited characteristics. With the advent of the multibillion-dollar project to map the human genome (our genetic inventory), we have been seeing this extreme claim more often. The truth is that a map of the human genome will not tell us everything. By way of confirmation, we quote the lead paragraph from a recent article in New Scientist ...... It was a surprise when DNA sequences from mitochondria in yeast cells were discovered setting up shop in the nuclear genomes (i.e., the normal genetic endowment of the cell nucleus). Now biologists find that DNA sequences in many species regularly and frequently hop from one genome to another. Genetic material from cell chloroplasts mix with that of the mitochondria and that of the normal nucleus in what seems to be a free-for-all. This genome hopping has earned DNA the adjective "promiscuous." The significance of DNA promiscuity is to be found ...... 135: MAY-JUN 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Where Is The Maestro? As we learn more and more about the gene complements of our planet's multitudinous life forms, the more it seems that the vaunted genome may not incorporate all of the information necessary to construct a living organism. Despite assurances to the contrary, we must ask if we really know the whole story. These doubts manifest themselves as we see that creatures that are very much alike genetically may be radically ...... seen in "diffuse individuals" such as fungi, where it is difficult to separate individual units of life. To illustrate, some fungi may be 1,000 years old and extend for 35 acres (15 hectares) and yet possess a single, still unmodified genome. In his review of A. Rayner's new book Degrees of Freedom: Living in Dynamic Boundaries, T. Wakeford writes: "So, like the World Wide Web, a fungal network is decentralized. There is no central region capable of exerting control over ...... in terms of gene "expression." Emphasis is always on maximizing the "fitness" of the organism (phenotype). Perhaps this seemingly excess genetic material actually maximizes the fitness (survivability) of the DNA itself. Evolution thus occurs at DNA and gene (genome) levels, despite what transpires at the organism (phenotype) level. (Doolittle, W. Ford, and Sapienza, Carmen; "Selfish Genes, the Phenotype Paradigm and Genome Evolution," Nature, 284:601, 1980.) Comment. ...... they may simply share exposure to the same environmental cues. Also, different organisms may have different mutation rates based on their ability to respond to the environment. And the discipline of molecular taxonomy, where an organism's position on the evolutionary tree is fixed by comparing its genome to those of others, would need extreme revision." What sort of experiment did Cairns do to cause such a ruckus? In particular, he studied E. Coli bacteria. Normally, these bacteria cannot metabolize the sugar lactose. Cairns exposed the E. ...... discovered clustered around hot deepsea vents, where temperatures may exceed 400 C. It is not their rugged constitutions that place these miniscule forms of life in a new category; it is their genomes. They are radically different from those found in prokaryotes and eukaryotes. The genome of one species of Archea collected from a hot vent 3 kilometers deep in the Pacific has been sequenced. Biologists were taken aback. Methanococcus jannaschii, as it has been dubbed, possesses 1738 genes, of which 56% are entirely new to science. Many ...12. Gene Wars... Self-promoting elements (also called ultraselfish genes, selfish genes, or selfish genetic elements) are vertically transmitted genetic entities that manipulate their "host" [as in "us'so as to promote their own spread, usually at a cost to other genes within the genome." You may not sense it, but your genes are struggling with each other, and you and/or your progeny will carry out the dictates of the victors of the "gene wars." (Hurst, Laurence D., et al; ...... up for such remarkable adaptations are: (1) It is the product of chance and natural selection; and (2) The Creator made things this way. Are there not other possibilities? Perhaps the fungus somehow stole the blueprints for the flower from the blueberry's genome; i.e., genetic endowment. After all, viruses are always subverting cell machinery. From Science Frontiers #42, NOV-DEC 1985.© 1985-2000 William R. Corliss Other Sites of Interest SIS. Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. ...... at least the possibility of non random mutation of bacteria. But, in the end, all participants in the debate recognize a great void: There exists no acceptable mechanism by which a life form can steer its own evolutionary way; that is, shape its own genome. What besides natural selection can do this? (Gillis, Anna Maria; "Can Organisms Direct Their Own Evolution?" BioScience, 41:202, 1991.) From Science Frontiers #75, MAY-JUN 1991.© 1991-2000 William R. Corliss Other ...... and May influence your being afflicted with Parkinson's and Alzheimer's, as well as rarer disorders. The first item (or "force") is the most disturbing. Mitochondria (with only 35 genes), it seems, can exercise vetoes over decisions by our own genome (with its 100,000 genes). (Cohen, Philip; "The Force," New Scientist, p. 30, February 26, 2000.) The cells of higher organisms are busy places. One of this cell's mitochondria is indicated at ...... neither alone holds all the secrets, not even implicitly." (Cohen, Jack, and Stewart, Ian; "Our Genes Aren't Us," Discover, 15:78, April 1994.) Comment. If "genes aren't us" the billion-dollar human genome project cannot fulfill its promises. From Science Frontiers #94, JUL-AUG 1994.© 1994-2000 William R. Corliss Other Sites of Interest SIS. Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster. The journal of intelligence and political conspiracy (CIA ...17. Anomalous Dreams... is difficult to understand how dreaming evolved. How can a series of small, random mutations introduce these often bizarre images that drift through the not-so-quiescent, sleeping brain? How could dreaming have had enough survival value to our distant ancestors to lock it permanently into the human genome? From Science Frontiers #131, SEP-OCT 2000.© 2000 William R. Corliss Other Sites of Interest SIS. Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster. The journal of intelligence and political conspiracy (CIA, FBI, JFK, ...... #47 and SF#63. Ritual processions like those hypothesized for the Nazca Plain resemble thosethought to have taken place along Avebury's avenue, Carnac's stone rows, and Chaco Canyon's mysterious converging system of "roads." Ritual processions seem to be built into the human genome. From Science Frontiers #134, MAR-APR 2001.© 2001 William R. Corliss Other Sites of Interest SIS. Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster. The journal of intelligence and political conspiracy (CIA, FBI, JFK, ...19. What Sang First?... of million years. Whales and birds filled the ocean and primeval forest with song long before our hominid branch sprouted on the Tree of Life. As a matter of fact, our closest relatives, the great apes, sing not at all. Somewhere in the hominid genome "music" genes reside, unexpressed in the apes, but somehow triggered into activity in the human line. We have learned recently that the Neanderthals manufactured bone flutes as far back at 53,000 years. They may not have been able to speak to ...... (SF#64) In Cairns' experiments, bacteria unable to digest lactose were presented with an all-lactose diet. They quickly acquired the mutations needed to digest the only food available. They did not have to wait for random mutations to accidentally hit upon the correct genome changes. A firestorm spread across the scientific community, even though other researchers saw similar effects. It was traumatic! One of science's foundation stones was at risk. The current theory of biological evolution insists that all mutations are random. Cairns believed he had shown ...... the whole science of biology is his sentence: "The discovery that cells use biochemical systems to change their DNA in response to physiological inputs moves mutation beyond the realm of 'blind' stochastic events and provides a mechanistic basis for understanding how biological requirements can feed back onto genome structure." (Shapiro, James A.; "Adaptive Mutation: Who's Really in the Garden?" Science, 268:373, 1995.) Comment. Random mutation has been a linchpin of Neo-Darwinism because it is "scientific"; that is ...... 200 Everglades astrobleme 194 Evolution 126, 187-192 of birds 145-147 chaotic 120 convergent 135, 141, 144, 150, 157, 161, 166, 329 directed 180-181 disease role 182 endosymbiosis role 189, 191 extraterrestrial 119, 120, 179, 189 of genius 308 genome 183 hypermutation 181 of idiot savants 306 of immune system 299-300 impact role 185-186, 211 jumping genes 182 molecular 321 morphology 120 of motion sickness 121 neutral theory 183, 190 Oklo phenomenon role 185 saltations 162, 187, 188 sea 185 self organization 190, 321 ...
Search took 0.040 secondsSearch powered by Zoom Search Engine