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The incorrect genetic theory of Darwin's time that made natural selection hard to explain was:

AGenetic drift theory
BBlending inheritance
CParticulate inheritance
DModern synthesis idea
Answer & Solution
Correct answer: B. Blending inheritance
1. Mendel's 1866 work was unknown to Darwin. 2. Blending inheritance was the prevailing idea. 3. It was wrong. _Source: OpenStax Biology 2e, Chapter 19, The Evolution of Populations (CC BY 4.0)._
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