Mendel's Law of Dominance — NEET Biology
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Characters are controlled by discrete units called factors. (ii) Factors occur in pairs. (iii) In a dissimilar pair of factors one member of the pair dominates (dominant) the other (recessive). The law of dominance is used to explain the expression of only one of the parental characters in a monohybrid cross in the F₁ and the expression of both in the F₂. It also explains the proportion of 3:1 obtained at the F₂.
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Adjacent to a frequently-asked paragraph in the same chapter.
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Q2. Why did Mendel not observe blending of traits in the F₂ generation of the dihybrid cross?
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Related Concepts from Principles of Inheritance and Variation