The Biological Problem of To-day: Preformation Or Epigenesis? : (Registro nro. 78061)
[ vista simple ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 02910cam a22003613u 4500 |
| 001 - CONTROL NUMBER | |
| control field | 37221 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | UtSlPG |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260610133840.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS | |
| fixed length control field | m |
| 007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION | |
| fixed length control field | cr n |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 260607r2011||||utu|||||o|||||||||||||| d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | UtSlPG |
| 041 #7 - LANGUAGE CODE | |
| Language code of text/sound track or separate title | en |
| Source of code | iso639-1 |
| 050 #4 - LIBRARY OF CONGRESS CALL NUMBER | |
| Classification number | QH |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Hertwig, Oscar, |
| Dates associated with a name | 1849-1922 |
| 240 10 - UNIFORM TITLE | |
| Uniform title | Präformation oder Epigenese? English |
| 245 14 - TITLE STATEMENT | |
| Title | The Biological Problem of To-day: Preformation Or Epigenesis? : |
| Remainder of title | The Basis of a Theory of Organic Development |
| 246 1# - VARYING FORM OF TITLE | |
| Title proper/short title | The Biological Problem of Today: Preformation Or Epigenesis?<br/>The Basis of a Theory of Organic Development |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Place of production, publication, distribution, manufacture | Salt Lake City, UT : |
| Name of producer, publisher, distributor, manufacturer | Project Gutenberg, |
| Date of production, publication, distribution, manufacture, or copyright notice | 2011 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 1 online resource : |
| Other physical details | multiple file formats |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Content type code | txt |
| Source | rdacontent |
| 337 ## - MEDIA TYPE | |
| Media type term | computer |
| Media type code | c |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | online resource |
| Carrier type code | cr |
| Source | rdacarrier |
| 500 ## - GENERAL NOTE | |
| General note | Release date is 2011-08-27 |
| 508 ## - CREATION/PRODUCTION CREDITS NOTE | |
| Creation/production credits note | Produced by Bryan Ness, Josephine Paolucci and the Online<br/>Distributed Proofreading Team at http://www.pgdp.net. (This<br/>book was produced from scanned images of public domain<br/>material from the Google Print project.) |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | "The Biological Problem of To-day: Preformation Or Epigenesis?" by Oscar Hertwig is a scientific treatise written in the late 19th century. This work delves into the biological debate concerning the nature of development, specifically examining two opposing theories: preformation, which posits that all characteristics of an organism are already present in a miniature form within the germ, and epigenesis, which suggests that development is a progressive formation from an initially unorganized state. Hertwig's exploration of these theories is informed by his expertise in embryology and cell biology. The opening of the book sets up the central question regarding whether embryonic development represents a preformed structure or an elaborative process shaped by environmental influences. Hertwig introduces the ideas of other biologists, particularly focusing on August Weismann's germplasm theory, which classifies hereditary material as distinct and stable while addressing the complexities of reproduction and differentiation. Through critical analysis, Hertwig aims to establish that true development relies on epigenesis, where the organism grows and develops through interactions with its surroundings, rather than merely revealing what was predetermined in the germ. The opening serves as a prelude to a deeper examination of the implications each theory carries for understanding heredity and the intricacies of life. (This is an automatically generated summary.) |
| 534 ## - ORIGINAL VERSION NOTE | |
| Note about original | Original publication data not identified |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Developmental biology |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Embryology |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Genetics |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mitchell, P. Chalmers, Sir |
| Fuller form of name | (Peter Chalmers), |
| Dates associated with a name | 1864-1945 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://www.gutenberg.org/ebooks/37221">https://www.gutenberg.org/ebooks/37221</a> |
No hay ítems disponibles.