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

  • A

    The discrete unit controlling a particular character is called a factor

  • B

    Out of one pair of factors one is dominant, and the other recessive

  • C

    Alleles do not show any blending and both the characters recover as such in $F_2$ generation

  • D

    Factors occur in pairs

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  • [AIIMS 1994]

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