By Russ Hodge
ISBN-10: 0816066817
ISBN-13: 9780816066810
Scientists are studying to control the genes of vegetation and animals, altering present organisms and growing new ones. by way of taking keep watch over of the mechanisms that govern heredity in different species, people are actively directing their very own evolution. Breakthroughs have come so speedy that many of us locate them unusual and scary. "Genetic Engineering" strains the heritage of genetic technology as much as the current day and proposes a few innovations approximately the way it is probably going to impact the long run. This attractive new source describes a number of the advancements within the first few years of the twenty first century and the way society is dealing with many of the moral demanding situations that accompany them. Politicians and the general public are actually dealing with vastly very important offerings approximately how genetic engineering and its items could be used. This insightful source is helping positioned issues into viewpoint and provides an idea of the dangers focused on genetic engineering. excellent for top college and school scholars and a wider viewers with very little clinical historical past, "Genetic Engineering" tells the interesting tale of the place genetics got here from, what it has made attainable, and the place it truly is more likely to take humankind. Chapters of this name comprise: From Breeding to a technological know-how of Heredity; Classical Genetics (1900-1950); Molecular Genetics - What Genes Are and the way They paintings (1950-1970); the increase of Genetic Engineering (1970-1990); Genetic Engineering within the Age of Genomes; and, Ethics and Genetic Engineering.
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Extra resources for Genetic engineering: manipulating the mechanisms of life
Example text
The grandson had read of experiments carried out on peas by Charles Darwin. He began to work with the plant, also repeating Mendel’s work without realizing it. He came to the same results and wrote them up in his university dissertation, which was published in the Austrian journal of experimental agriculture. But Tschermak did not immediately understand the significance of what he had discovered. He did not realize, for example, that the 3:1 ratio meant that genes had dominant and recessive characteristics; he described some of the traits as having more “hereditary potency” than others.
26 GENETIC ENGINEERING knowing that the plant was a special case, he began to doubt his own line of thought. By this time, Mendel had been elected abbot of the monastery. He spent the last 20 years of his life taking care of its business and performing extra duties such as taking part in city committees. This left little time for his work with plants, although he continued to work with bees. In 1869, he once again addressed the Brno Society for the Study of Natural Sciences, reporting the confusing results of his work with hawkweed and calling his own earlier hypotheses into question.
He had not yet heard of Mendel’s laws, but his own observations of cells hinted that parents contributed equally to the characteristics of their offspring and that hereditary material consisted of units on the chromosomes. As an undergraduate at the University of Kansas, Sutton worked on chromosomes in the laboratory of Clarence McClung (1870–1946), who believed that an extra chromosome made animals into males. At the time, little was known about chromosomes except that they appeared suddenly at the onset of cell division and then vanished again.
Genetic engineering: manipulating the mechanisms of life by Russ Hodge
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