Рубрики:
ENVIRONMENTAL SEX DETERMINATION
DROSOPHILA-MELANOGASTER
CAENORHABDITIS-ELEGANS
HOX GENES
EVOLUTION
LETHAL
RATIO
TEMPERATURE
REPTILES
SIGNAL
ENVIRONMENTAL SEX DETERMINATION
DROSOPHILA-MELANOGASTER
CAENORHABDITIS-ELEGANS
HOX GENES
EVOLUTION
LETHAL
RATIO
TEMPERATURE
REPTILES
SIGNAL
Аннотация: Neo-Darwinism is a result of synthesis of Darwinian concept of natural selection with Weismannian concept of germ plasm. The concept of germ plasm is based on a hypothesis that phenotypic traits are completely determined by genes. Hence, neo-Darwinism describes evolution as a process of alternation of ene frequencies under the effect of natural selection. This is an inadequate approach to the study of evolution. In the course of evolution, genes change their functions, whereas phenotypic characters change their corresponding genes. As a result, every step of evolutionary transformation changes the structure of phenotype-to-genotype correspondence. Therefore, phenotypic evolution cannot be described in genetic terms, the same as to human languages cannot be translated one into another whenever the meaning of words is constantly changing. Consequently, Weismannian germ-plasm concept adequately desribes the relation of characters to genes only during stasis, but is inapplicable to evolution.
WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest Res, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Grodnitsky, D.L.