Multicolour Edition
CELL BIOLOGY, GENETICS, MOLECULAR BIOLOGY, EVOLUTION AND ECOLOGY [For B.Sc., B.Sc. (Hons.), and M.Sc. (Zoology, Botany and Biosciences) Classes of All Indian Universities]
P.S. VERMA M.Sc., Ph.D., F.E.S.I., F.A.Z.
Reader Department of Zoology, Meerut College, Meerut
V.K. AGARWAL M.Sc., Ph.D.
Reader Department of Zoology, Meerut College, Meerut
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© 1974, P.S. Verma & V.K. Agarwal. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the Publisher. First Edition 1974 Subsequent Editions and Reprints 1975, 76, 77, 78, 80, 81, 83 (Twice) 1985, 86, 87, 89, 90, 91, 93, 94, 95, 97, 98, 99, 2001, 2002, 2003 Reprint 2004
First Multicolour Edition 2004
ISBN : 81-219-2442-1
PRINTED IN INDIA
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Preface T PREFACE
gy he multicoloured edition of the textbook of Cell Biolo Biology gy,, Genetics, Molecular Bigy olution gy olo Ev Ecolo ology gy, Evolution and Ecology is the outcome of sincere and combined efforts of the authors and editors (namely Shishir Bhatnagar, Shubha Pradhan, Malini Kothiyal Kothiyal) and young but talented persons of DTP of S.Chand & Company Ltd. Their main motive remained to provide relevant coloured photographs explaining various intricate biological topics. Multicoloured figures and photographs of this edition would help our target readers to understand and fully appreciate the very gist of the subject matter. Authors and editors have remained quite choosy and vigilant regarding relevance and authenticity of each and every illustration/picture finding its place in this textbook. gy Authors earnestly hope that this multicoloured edition of the textbook of Cell Biolo Biology gy,, Genetics, Molecular Biology, Evolution and Ecology will enhance the curiosity of our target readers to know more