NEET BIOLOGY

Detailed explanation-1: -In On the Origin of Species, Charles Darwin accepted the principle of the inheritance of acquired characteristics as one of the factors contributory to evolution.

Detailed explanation-2: -Lamarck is best known for his Theory of Inheritance of Acquired Characteristics, first presented in 1801 (Darwin’s first book dealing with natural selection was published in 1859): If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring.

Detailed explanation-3: -Lamarck’s Theory of Inheritance of Acquired Characteristics has been disproved. This was done in two major ways. The first is by experiment. We have seen through many real examples and observations that changes that occur in an animal during life are not passed on to the animal’s offspring.

Detailed explanation-4: -Jean Baptiste Lamarck (1744-1829) is one of the best-known early evolutionists. Unlike Darwin, Lamarck believed that living things evolved in a continuously upward direction, from dead matter, through simple to more complex forms, toward human “perfection.” Species didn’t die out in extinctions, Lamarck claimed.

Detailed explanation-5: -Lamarckian Inheritance He believed that traits changed or acquired over an individual’s lifetime could be passed down to its offspring. Giraffes that had acquired long necks would have offspring with long necks rather than the short necks their parents were born with.