Some generations of Drosophila were blinded by a scientist by keeping in complete darkness throughout their life. In spite of that, the next generaion of flies possessed normal eyesight. This disapproves the theory based on
Some generations of Drosophila were blinded by a scientist by keeping in complete darkness throughout their life. In spite of that, the next generaion of flies possessed normal eyesight. This disapproves the theory based on
The correct option is A Acquired characters
Theory of Lamarckism was based on the principle of acquired characters. According to this theory, if an organism of a particular generation acquires a certain character, it passes it to the next generation. The above example tells about the loss of eyesight by fruit flies when they have been kept under dark. But these features were not passed to the next progenies as they have normal vision thus defying the law of acquired characters.
Theory of Continuity of Germplasm is the one which tells about the inheritance of characters from the parent generation if the characters influencing germ cells are inherited.
According to the theory of abiogenesis, it was stated that living organisms originated from the group of non-living materials.
According to Lamarck’s theory of use and disuse, the organ which is used continuously will develop whereas the organ which is not used will either degenerate or remain the same.
Theory of Lamarckism was based on the principle of acquired characters. According to this theory, if an organism of a particular generation acquires a certain character, it passes it to the next generation. The above example tells about the loss of eyesight by fruit flies when they have been kept under dark. But these features were not passed to the next progenies as they have normal vision thus defying the law of acquired characters.
Theory of Continuity of Germplasm is the one which tells about the inheritance of characters from the parent generation if the characters influencing germ cells are inherited.
According to the theory of abiogenesis, it was stated that living organisms originated from the group of non-living materials.
According to Lamarck’s theory of use and disuse, the organ which is used continuously will develop whereas the organ which is not used will either degenerate or remain the same.
