Question

Explain Lamarkism postulats and criticism ???

Answer 1

The over use of an organ cause its growth and that character is transmitted to next generations.
eg: Length of the neck of Giraffe increased due to feeding the leaves of higher trees .
This theory faced criticism by many scientists.They raised the question that how aquired characters transmit to next generations?
only genetically evolved characters transmit to next generations

Answer 2

Explanation:

The classic example used to explain the concept of use and disuse is the elongated neck of the giraffe. According to Lamarck's theory, a given giraffe could, over a lifetime of straining to reach high branches, develop an elongated neck.