Question

80. Which of the following postulates of the Lamarck's
theory was refuted by A. Weismann?
(1) The acquired changes are passed on to the
next generation
(2) The organisms undergo changes to adap
themselves to the environment
(3) Use of a particular organ will lead to its
strengthening
(4) Both (2) & (3)​

Answer 1

Explanation:

Lamarckism, or Lamarckian inheritance, also known as "Neo-Lamarckism",[1] is the notion that an organism can pass on to its offspring physical characteristics that the parent organism acquired through use or disuse during its lifetime. This idea is also called the inheritance of acquired characteristics or soft inheritance. It is inaccurately[1][2] named after the French biologist Jean-Baptiste Lamarck (1744–1829),