000			01496cam a2200169Ia 4500
999			_c9329 _d9329
020			_a0716750694
020			_a9780716750697
082			_a575
100	1		_aLewin, Roger
245	1	0	_aPatterns in evolution :
260			_aNew York : _bScientific American Library, _c1997
300			_avii, 246 p. : _bcol. ill. ;
505	0		_aA new window onto nature -- Molecules versus morophology -- Trees of life -- The puzzle of genetic variation -- The molecular evolutionary clock -- Molecular ecology -- Molecular anthropology -- Ancient DNA
520			_aIn Patterns in Evolution, noted science journalist Roger Lewin explores how genetic information is providing new insight into evolutionary events: scientists are now able to study evolutionary change at the molecular level and reconstruct evolutionary lineages based on changes in DNA. With this new ability, they are overthrowing established ideas about which organisms are closely related and solving puzzles that had previously seemed beyond their reach. Lewin looks at how these new techniques are being used to explore a wide range of issues, from those regarding the deepest past to those concerned with the most recent present - from characterizing the universal ancestor of all life to tracking the trail of infection of the AIDS virus. The techniques have proved especially useful to anthropologists in their attempts to unravel the origins, both ancient and modern, of the human species
650		0	_aMolecular evolution
942			_cBK