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One of the major issues that Darwin struggled with was the mechanism of how variations were...

One of the major issues that Darwin struggled with was the mechanism of how variations were passed down from parents to offspring. The common belief among Darwin and his contemporaries was that traits were passed down via blending inheritance. Why is this method of inheritance problematic for Darwin’s theory

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blending inheritance is an outdated theory which states that the progeny inherits traits as the average of the parent's values of that characteristic. by various experiments, this theory was discarded with proofs. darwins theory of inheritance by pangenesis was based upon blending inheritance, so this method was problematic for darwins theory. later on, it was replaced by Mendelian inheritance which was widely accepted.

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