Question

explain briefly modern synthetic theory of evolution

Answer 1

The modern synthetic theory of evolution is the result of the work of a number of scientists namely T. Dobzhansky, R.A. Fisher, J.B.S. Haldane, Swall Wright, Ernst Mayr, and G.L. Stebbins. Stebbins in his book, Process of Organic Evolution, discussed the synthetic theory.

It includes the following factors (1) Gene mutations (2) Variation (Recombination) (3) Heredity, (4) Natural selection and (5) Isolation.

Answer 2

The Modern Synthetic theory of Evolution explains the evolution of life in terms of genetic changes occurring in the populations that leads to the formation of new species. It also explains about the genetic population or mendelian population, gene pool and the gene frequency. The concepts coming under this synthetic theory of evolution includes the genetic variations, reproductive and geographical isolation and the natural selection.

The Modern Synthetic populations, of Evolution, describes the merging of the Darwinian evolution with the Mendelian genetics, resulting into a unified theory of the evolution. This theory is also referred as the Neo-Darwinian theory. Synthetic theory of Evolution was introduced to us by few legendary evolutionary biologists naming T. Dobzhansky, J.B.S. Haldane, R.A. Fisher, Swall Wright, G.L. Stebbins, Ernst Mayr in the years 1930 and 1940.

The Modern Synthetic theory of Evolution showed a number of changes as to how the evolution and the process of evolution are conceived. The theory gave a new definition about the evolution as “the changes occurring in the allele frequencies within the populations, ” which emphasizes on the genetics of evolution.

The modern synthetic theory includes the scientific evidence from the genetics. It explains the concepts which occur when the allele frequency of the population changes. According to this theory, when the changes are great enough, there is a formation of new species. A species is a group of individuals which are capable of interbreeding and producing a fertile offspring.

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