Cellular consequences of evolution. [electronic resource]
Autor: | Campbell, A. Malcolm, author |
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Další autoři: |
Paradise, Christopher J., author
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Jazyk: | angličtina |
Informace o vydání: | New York, [New York] (222 East 46th Street, New York, NY 10017) : Momentum Press, 2016. |
Předmět: |
Cytology
Cells -- Evolution Immune system -- Evolution DNA damage Libros electronicos DNA polymerase allele whole genome duplication mutation natural selection single nucleotide polymorphism dot plot speciation insertion deletion horizontal gene transfer GC content provirus copy number variation cancer ploidy paralogs genetically modified organisms allergy B cells antibodies secondary immune response memory B cells survival signal somatic hypermutation |
Druh dokumentu: | Abstracts; Bibliographies; Online; Non-fiction; Electronic document |
Abstrakt: | Abstract: Once the first cell arose on Earth, how did genetic diversity arise if DNA replication and cell division generate exact copies? The answer is that neither process is perfect and that changes do occur at each step. Some changes are small and subtle while others are large and dramatic. As DNA mutates, evolution of a population takes place. But when can someone determine if a single species has changed enough to be considered two separate species? How is a species defined and is this definition useful in the real world? Real biological data will be examined to confront and answer these questions. Finally, the book examines an example of evolution that takes place in humans on a regular basis--the mammalian immune system. White blood cells evolve rapidly to confront any substance that enters a body and is perceived as a threat. With each exposure, these cells get better and better at neutralizing the threat. |
Databáze: | Vybrané kolekce e-knih |
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