| 单词 | preformation |
| 例句 | By the end of the seventeenth century, preformation was considered the most logical and consistent explanation for human and animal heredity. The Gene 2016-06-02T00:00:00Z The second charm of preformation was that it dispensed of the problem of de-encryption. The Gene 2016-06-02T00:00:00Z The principal challenge to preformation was the idea that something had to happen during embryogenesis that led to the formation of entirely new parts in the embryo. The Gene 2016-06-02T00:00:00Z Indeed, preformation was largely a restatement of Pythagoras’s theory—that sperm carried all the information to make a new human. The Gene 2016-06-02T00:00:00Z The peculiar charm of this idea—called preformation—was that it was infinitely recursive. The Gene 2016-06-02T00:00:00Z In France, the theory was called “embodiment”; in England, “preformation” or “preexistence.” This is how science lost God: Atheism, evolution and the long road to Richard Dawkins’ latest Twitter controversy 2016-01-17T05:00:00Z That it might satisfy our human craving for final causes, the theory of preformation had to be accompanied by a corresponding explanation of the origin of the miniatures. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z We mistake our power of analyzing our inner world, for its preformation, i. e. the genealogist thinks himself both originator and founder. The Campaner Thal and Other Writings 2011-04-26T02:00:29.827Z A step towards the mechanical solution of this problem was indicated in the “preformation theory” advanced by Leibnitz, and elaborated by Bonnet. Naturalism And Religion Epigenesis: the doctrine of growth from an undifferentiated germ, as opposed to preformation, which implies development from already existing rudiments. Explanation of Terms Used in Entomology Proponents of preformation could see the evidence all around them in the natural world. This is how science lost God: Atheism, evolution and the long road to Richard Dawkins’ latest Twitter controversy 2016-01-17T05:00:00Z Thus, the theory of preformation gave rise to the conception that living things were a series of cases or wrappings, germ folded within germ. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Opposed preformation views; epigenesis definitely stated and adopted. Lamarck, the Founder of Evolution His Life and Work 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 first Scholion is directed against the theory of preformation, and succeeds in refuting it on the ground of simple observation. Form and Function A Contribution to the History of Animal Morphology The freshwater polyp’s ability to be split into two separate organisms did not, in his mind, fit the notion of preformation. This is how science lost God: Atheism, evolution and the long road to Richard Dawkins’ latest Twitter controversy 2016-01-17T05:00:00Z To reckon at their proper value the theory of preformation, and, still more, the doctrine of enfolded germs, the standard of appreciation must not be the present range of our knowledge. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z And I would have added that nothing is better qualified than the preformation of plants and of animals to confirm my System of Pre-established Harmony between the soul and the body. Theodicy Essays on the Goodness of God, the Freedom of Man and the Origin of Evil Modern biologists ridicule the preformation hypothesis as altogether too artificial. Naturalism And Religion At the time, the "preformation theory" was probably the most widely accepted—i.e., that the adult form exists in miniature in the egg or germ, development being merely an unfolding of these preformed parts. Taboo and Genetics A Study of the Biological, Sociological and Psychological Foundation of the Family By the time Buffon sat down to write his own treatise of natural knowledge, the doctrine of preformation was still in vogue, even with most natural philosophers. This is how science lost God: Atheism, evolution and the long road to Richard Dawkins’ latest Twitter controversy 2016-01-17T05:00:00Z 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 But the first takes place in the preformation of organic bodies, or rather of all bodies, since there is organism everywhere, although all masses do not compose organic bodies. Theodicy Essays on the Goodness of God, the Freedom of Man and the Origin of Evil Weismann is so far right, he admits, from his materialistic premisses when he starts with preformations. Naturalism And Religion The truth is that biological processes are not within our powers of conception as those of physics and chemistry are, and Bateson's hypothesis is nothing but the old theory of preformation in ontogeny. Hormones and Heredity Those who believed in preformation were never short of evidence. This is how science lost God: Atheism, evolution and the long road to Richard Dawkins’ latest Twitter controversy 2016-01-17T05:00:00Z 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 In fact, the preformation theory held that the germs of the whole of humanity were stored already in Eve's ova. The Evolution of Man — Volume 1 This theory certainly contains all the monstrosities of preformation in the germ, the mythologies of the infinitely small, and it suffers shipwreck in ways as diverse as the number of its sides and parts. Naturalism And Religion If we accept the idea that characters are represented by particular parts of the chromosomes, according to Morgan's scheme, our theory of development is the modern form of the theory of preformation. Hormones and Heredity According to preformation, God alone was responsible for the ultimate act of creation. This is how science lost God: Atheism, evolution and the long road to Richard Dawkins’ latest Twitter controversy 2016-01-17T05:00:00Z It seems to me that the significance of Wolff's doctrine lies in this: it rejected the purely formal theory of preformation because actual observations were against it. 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 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 In this respect it is like its predecessor, the theory of preformation of the eighteenth 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 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 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 There is no trace whatever of preformation or in-folding of organs. The Evolution of Man — Volume 1 First, I have to examine the arguments recently alleged in favour of the theory of preformation, testing them to reveal their inherent weaknesses, and to controvert their fallacies. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Blumenbach has already brought forward the existence of galls as an argument against preformation, holding them to be structures produced epigenetically, and, therefore, unrepresented by rudiments in the germ. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Among the philosophers of the time the distinguished Leibnitz was the chief defender of the "preformation theory," and by his authority and literary prestige won many adherents to it. The Evolution of Man — Volume 1 |
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