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According to Neo-Darwinism, evolution occurs through the accumulation of genetic variations in
According to Neo-Darwinism, evolution occurs through the accumulation of genetic variations in
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The correct option is B a population
Neo-Darwinism or modern synthetic theory of evolution, is an improvement of Darwin’s theory of natural selection proposed by the supporters of Darwin. It is a combination of ideas from Darwin's theory of natural selection, mutation theory and Mendel’s principles of heredity.
Unlike Darwinism, which failed to explain the cause of variations, Neo-Darwinism believed that the raw materials for evolution are the genetic variations that occur in the gene pool of a population. Gene pool refers to the sum of a population's genetic material at a given time.
The causes behind these variations can be mutations, genetic recombinations during meiosis, changes in number or structure of chromosomes, etc.
The individuals of a population that carry the favourable genetic variations provide them with better adaptability in a changing environment and increased reproductive fitness (ability to produce healthy and fertile offspring).
Nature selects such organisms for survival and an isolated group of such individuals can gradually evolve into a new species.
Thus, according to Neo-Darwinism, evolution is brought about by the genetic variations in the gene pool of a population.
Neo-Darwinism or modern synthetic theory of evolution, is an improvement of Darwin’s theory of natural selection proposed by the supporters of Darwin. It is a combination of ideas from Darwin's theory of natural selection, mutation theory and Mendel’s principles of heredity.
Unlike Darwinism, which failed to explain the cause of variations, Neo-Darwinism believed that the raw materials for evolution are the genetic variations that occur in the gene pool of a population. Gene pool refers to the sum of a population's genetic material at a given time.
The causes behind these variations can be mutations, genetic recombinations during meiosis, changes in number or structure of chromosomes, etc.
The individuals of a population that carry the favourable genetic variations provide them with better adaptability in a changing environment and increased reproductive fitness (ability to produce healthy and fertile offspring).
Nature selects such organisms for survival and an isolated group of such individuals can gradually evolve into a new species.
Thus, according to Neo-Darwinism, evolution is brought about by the genetic variations in the gene pool of a population.
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