Q. I. Use and disuse of organs II. Inheritance of acquired characters III. Branching descent IV. Natural selection V. Mutation VI. Reproductive isolation The two key concepts of Darwinism from the given options are

A) I and II
B) III and IV
C) V and VI
D) IV and VI
Explanation

Branching desent and natural selection are the two main concepts of Darwin. Mendel’s laws of inheritance and Weismann’s theory of continuity of germplasm (1892) discarded Lamarck’s concept of inheritance of acquired characters [image:7_image22.emf]

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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