Biology, asked by Kundan4696, 1 year ago

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Answered by Ashu9616
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Kundan4696: Q4
Answered by bharat92
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the hypothesis that an organism can pass on characteristics that it has acquired during its lifetime to its offspring. It is also known as the inheritance of acquired characteristics or soft inheritance. It is named after the French biologist Jean-Baptiste Lamarck (1744–1829), who incorporated the action of soft inheritance into his evolutionary theories as a supplement to his concept of orthogenesis, a drive towards complexity. Lamarck did not originate the idea of soft inheritance, which was known from the classical era onwards, nor was it the primary focus of his theory of evolution.

When Charles Darwin published his theory of evolution by natural selection in On the Origin of Species (1859), he continued to give credence to what he called "use and disuse inheritance", but rejected other aspects of Lamarck's theories. Later, Mendelian geneticssupplanted the notion of inheritance of acquired traits, eventually leading to the development of the modern synthesis, and the general abandonment of the Lamarckian theory of evolution in biology. Despite this abandonment, interest in Lamarckism has continued.


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