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Question
According to theory put forth to explain the mechanism of organic evolution, when structure of a gene under goes a change, the trait it represents also changes. This results in a heritable variation in population, and may lead to the formation of new species from pre existing species.
Who put forth the above theory of evolution?
According to theory put forth to explain the mechanism of organic evolution, when structure of a gene under goes a change, the trait it represents also changes. This results in a heritable variation in population, and may lead to the formation of new species from pre existing species.
Who put forth the above theory of evolution?
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Solution
The correct option is B De Vries
Darwin's theory of evolution states that all the species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive and reproduce.
Hugo de Vries put forward the mutation theory which states that the new species are not formed by continuous variations but by sudden appearance of variations, which he named as mutations. He stated that mutations are heritable and persist in successive generations.
Lamarck proposed the theory of inheritance of acquired characterisitcs, which states that if and organism changes during life in order to adapt to its environment, those changes are passed onto the offsprings.
Darwin and Wallace developed similar theory.
Thus, the correct answer is option (B).
Darwin's theory of evolution states that all the species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive and reproduce.
Hugo de Vries put forward the mutation theory which states that the new species are not formed by continuous variations but by sudden appearance of variations, which he named as mutations. He stated that mutations are heritable and persist in successive generations.
Lamarck proposed the theory of inheritance of acquired characterisitcs, which states that if and organism changes during life in order to adapt to its environment, those changes are passed onto the offsprings.
Darwin and Wallace developed similar theory.
Thus, the correct answer is option (B).
Lamarck proposed the theory of inheritance of acquired characterisitcs, which states that if and organism changes during life in order to adapt to its environment, those changes are passed onto the offsprings.
Darwin and Wallace developed similar theory.
Thus, the correct answer is option (B).
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