Origins of Life pdf epub mobi txt 电子书 下载 2024


Origins of Life

简体网页||繁体网页
Freeman Dyson
Cambridge University Press
1999-9-28
112
USD 36.99
Paperback
9780521626682

图书标签: 科普  科幻小说  生物物理  生物  生命起源  philosophy  Physics  NLB   


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发表于2024-11-04

Origins of Life epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2024

Origins of Life epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2024

Origins of Life pdf epub mobi txt 电子书 下载 2024



图书描述

How did life on Earth originate? Did replication or metabolism come first in the history of life? In the second edition of the acclaimed Origins of Life, distinguished scientist and science writer Freeman Dyson examines these questions and discusses the two main theories that try to explain how naturally occurring chemicals could organize themselves into living creatures. The majority view is that life began with replicating molecules, the precursors of modern genes. The minority belief is that random populations of molecules evolved metabolic activities before exact replication existed and that natural selection drove the evolution of cells toward greater complexity for a long time without the benefit of genes. Dyson analyzes both of these theories with reference to recent important discoveries by geologists and chemists, aiming to stimulate new experiments that could help decide which theory is correct. This second edition covers the impact revolutionary discoveries such as the existence of ribozymes, enzymes made of RNA; the likelihood that many of the most ancient creatures are thermophilic, living in hot environments; and evidence of life in the most ancient of all terrestrial rocks in Greenland have had on our ideas about how life began. It is a clearly written, fascinating book that will appeal to anyone interested in the origins of life.

Origins of Life 下载 mobi epub pdf txt 电子书

著者简介

The plural of the title is purposeful: Dyson advances the hypothesis that life had a double origin. "Either life began only once, with the functions of replication and metabolism already present in rudimentary form and linked together from the beginning, or life began twice, with two separate kinds of creatures, one kind capable of metabolism without exact replication and the other kind capable of replication without metabolism." He sees reasons to favor the second possibility, with metabolizing creatures appearing first. Dyson is a renowned theoretical physicist (professor emeritus at the Institute for Advanced Study in Princeton, N.J.)


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Ebook Looking for homeostasis complicated interlocking molecular reaction web counterpart to Delbruck's Bacteriophage from the Bottom-Up

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A book after what is life

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Ebook Looking for homeostasis complicated interlocking molecular reaction web counterpart to Delbruck's Bacteriophage from the Bottom-Up

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It's a fundamental interest, but might not be fundamental importance to one who's making ends meet.

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Ebook Looking for homeostasis complicated interlocking molecular reaction web counterpart to Delbruck's Bacteriophage from the Bottom-Up

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