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By Benjamin A. Pierce

Designed for introductory genetics classes and in line with many years of training adventure, Genetics: A Conceptual procedure specializes in the real strategies and mechanics of genetics with no wasting scholars in a sea of aspect.

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Under optimal conditions, some bacterial cells divide every 20 minutes. At this rate, a single bacterial cell could produce a billion descendants in a mere 10 hours. A prokaryotic cell contains a single circular chromosome. Bacterium DNA Origin of replication As the chromosome replicates, the origins segregate to opposite sides. Origin of replication The origins are anchored to opposite sides of the cell. The cell divides. Each new cell has an identical copy of the original chromosome. Eukaryotic Cell Reproduction Like prokaryotic cell reproduction, eukaryotic cell reproduction requires the processes of DNA replication, copy separation, and division of the cytoplasm.

Photo by Conly L. ) The Blind Men’s Riddle n a well-known riddle, two blind men by chance enter a department store at the same time, go to the same counter, and both order five pairs of socks, each pair of different color. The sales clerk is so befuddled by this strange coincidence that he places all ten pairs (two black pairs, two blue pairs, two grey pairs, two brown pairs, and two green pairs) into a single shopping bag and gives the bag with all ten pairs to one blind man and an empty bag to the other.

Today, the genomes of numerous organisms are being sequenced, analyzed, and compared. The Future of Genetics The information content of genetics is increasing at a rapid pace. The genome sequences of many organisms are added to DNA databases every year, and new details about gene structure and function are continually expanding our knowledge of heredity. All of this information provides us with a better understanding of numerous biological processes and evolutionary relationships. The flood of new genetic information requires the continuous development of sophisticated computer programs to store, retrieve, compare, and analyze genetic data and has given rise to the field of bioinformatics, a merging of molecular biology and computer science.

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