| 单词 | epigenesis |
| 例句 | The chemical processes that alter the genes in epigenesis – methylation and deacetylation of the packaging proteins of the genes, the histones – are fairly well understood. Identically Different: Why You Can Change Your Genes by Tim Spector – review 2012-08-08T09:30:03Z Some species, indeed, can pass this resilience on to their offspring by a process called intergenerational epigenesis. Mass die-offs are driving efforts to create hardier corals 2018-03-15T04:00:00Z In the case of mothers, it is now believed that this process, called intergenerational epigenesis, is caused by micro-RNAs from the parent getting into eggs as they form in a developing fetus. The ramifications of a new type of gene 2018-02-22T05:00:00Z The differences between the exponents of evolution and epigenesis offer practical problems to be decided by experiment. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z Presented in this view, the doctrine of epigenesis raised against itself the most simple and scientific common sense, as being manifestly erroneous. The Catholic World; Volume I, Issues 1-6 A Monthly Eclectic Magazine 2012-04-05T02:00:40.207Z It is interesting to display the essential contrast between preformation and epigenesis in the poetical words of Wolff himself. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z The weight of Malpighi’s observations therefore fell into the scale of that doctrine which Harvey terms metamorphosis, in contradistinction to epigenesis. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z But, with her mouse work alone, it looks as if Ms Chan has cracked an important part of the puzzle of intergenerational epigenesis. The ramifications of a new type of gene 2018-02-22T05:00:00Z A more intriguing possibility, though, is that the relevant genes are affected by epigenesis, a process in which chemicals attached to the DNA control its activity. Extending lifespan: Thanks, Mum! 2010-09-30T10:54:00Z That means environmentally induced effects that are translated into action by this sort of epigenesis might be being confused by researchers with inherited ones. The biology of business: Homo administrans 2010-09-23T10:46:00Z Wolff's epigenesis was not a complete explanation—indeed, from its fundamental conception it could not possibly be such. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z At the close of the eighteenth century the dominant view was that in the making of a creature out of the egg there was no putting on of wholly new parts, no epigenesis. The Voice of Science in Nineteenth-Century Literature Representative Prose and Verse Opposed to this theory was one of later growth, the theory of epigenesis, which maintained that the organism developed without preformation from the still undifferentiated and homogeneous substance of the egg. Naturalism And Religion The epigenesis of a spiritual body lies outside his horizon. Monophysitism Past and Present A Study in Christology A process called epigenesis, which shuts down genes in response to environmental prompts, may make their effective genomes different from their actual ones. The biology of business: Homo administrans 2010-09-23T10:46:00Z The prosecution of biological investigation will continuously endow the theory of epigenesis with a fuller and fuller meaning, but will never transform it into a solution final in the sense of the theory of preformation. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Actually, Harvey's exposition of epigenesis, albeit clear, is not totally impressive, since it is largely a reflection of Aristotle's influence. Medical Investigation in Seventeenth Century England Papers Read at a Clark Library Seminar, October 14, 1967 For the theory of epigenesis obviously required mysterious formative principles, and equally mysterious powers of recollection and recapitulation, which impelled the undifferentiated ovum substance into the final form, precisely like that of its ancestors. Naturalism And Religion In the present case, a delicate physiological problem has become as popular as theories on epigenesis, spontaneous generation, or Darwinian evolution, and for an analogous reason. The Education of American Girls Preformation: the doctrine of growth or development from already existing rudiments; opposed to epigenesis: q.v. Explanation of Terms Used in Entomology In this descriptive investigation of the development of external form, epigenesis, the successive formation of new shapes, gained a complete victory over evolution, the mere becoming visible of pre-existing details of shape. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z The main importance of Harvey's vigorous and cogent defense of epigenesis is that it provided some kind of counterbalance to the increasingly dominant preformationist interpretations of embryonic development. Medical Investigation in Seventeenth Century England Papers Read at a Clark Library Seminar, October 14, 1967 To these modern preformationists are opposed the modern upholders of epigenesis or gradual differentiation, who attempt to elaborate a mechanical theory of development. Naturalism And Religion Opposed preformation views; epigenesis definitely stated and adopted. Lamarck, the Founder of Evolution His Life and Work He was greatly impressed with this fact, which, as a convinced believer in epigenesis, he used with great effect against the preformistic theories. Form and Function A Contribution to the History of Animal Morphology In fact, the deepest consideration leads us again to the original question: Is embryonic development epigenesis or evolution? The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z This is what is styled the theory of epigenesis, and is adopted by the chief physiologists of the present day. The Destiny of the Soul A Critical History of the Doctrine of a Future Life Here the whole riddle of the theory of epigenesis, which Weismann wished to do away with as a mystery, is repeated a thousand times and made more difficult. Naturalism And Religion We find nothing in Lamarck’s writings opposed to epigenesis. Lamarck, the Founder of Evolution His Life and Work In fact, the main concern of Harvey's wonderful little treatise is not with generation, in the physiological sense, at all, but with development; and his great object is the establishment of the doctrine of epigenesis. Discourses Biological and Geological Essays Thus, in our own days, after the controversy has been at rest for long, biologists are assembled in opposing groups, one under the standard of epigenesis, another under that of preformation. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z The weight of Malpighi's observations therefore fell into the scale of that doctrine which Harvey terms metamorphosis, in contradistinction to epigenesis. Darwiniana : Essays — Volume 02 In the first place, his theory of epigenesis gave us our first real insight into the nature of embryonic development. The Evolution of Man — Volume 1 The epigenesis was, at least, as grand an occasion as the genesis. Theological Essays and Other Papers — Volume 1 Roux, contrast between epigenesis and evolution, 6; mosaic theory of, 56. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Moreover, in deciding between the alternatives—preformation and epigenesis—I believe that it will profit us to start our critical investigation with the cell itself. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z So far as individual plants and animals are concerned, therefore, evolution is not a speculation but a fact; and it takes place by epigenesis. Darwiniana : Essays — Volume 02 To-day we can scarcely call epigenesis a THEORY, because we are convinced it is a fact, and can demonstrate it at any moment with the aid of the microscope. The Evolution of Man — Volume 1 To a certain extent, therefore, I reconcile the opposition between evolution and epigenesis, these opponents so prominent last century. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z The development is an epigenesis, or impressing on identical material of different characters by different surrounding forces. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Clearly, according to these general definitions, occurrences which outwardly exhibit epigenesis may be in reality partial or complete evolution. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z The opposing views of to-day were in existence centuries ago, and they are known in the history of science as the theory of preformation or evolution, and the theory of epigenesis. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z At once a number of biologists instituted fresh embryological inquiries, and began to confirm Wolff's theory of epigenesis. The Evolution of Man — Volume 1 Both cases—the course of the development of the egg-cell into a man, and of men into a state—depend upon epigenesis, not upon evolution. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z This was the condition of things when suddenly, in 1759, Caspar Friedrich Wolff appeared, and dealt a fatal blow at the whole preformation theory with his new theory of epigenesis. The Evolution of Man — Volume 1 |
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