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NEET2010ZoologyPrinciples of Inheritance and VariationActual

Which one of the following cannot be explained on the basis of Mendel's Law of Dominance?

Options

  1. AThe discrete unit controlling a particular character is called a factor
  2. BOut of one pair of factors one is dominant, and the other recessive
  3. CAlleles do not show any blending and both the characters recover as such in F ₂ generation
  4. DFactors occur in pairs

Correct answer

C. Alleles do not show any blending and both the characters recover as such in F ₂ generation

Step-by-step solution

The law of dominance does not occur universally. After Mendel several cases were recorded by scientists, where a clear deviation from law of dominance was seen. Such a deviation may be seen in the form of Incomplete dominance or Blending inheritance and Co-dominance. Where F₁ hybrids exhibited a mixture or blending of character of two parents, the case is considered as that of incomplete dominance blending inheritance. It simply means that two genes of allelomorphic pair are not related as dominant or recessive, bu

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