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Laws of dominance

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Laws of dominance
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Gaurav Seth 5 years ago

LAW OF DOMINANCE

The law of dominance states that one of the pairs of inherited traits will be dominant and the others recessive unless both the factors are recessive.

The dominant allele masks the effect of recessive allele. It explains the expression of only one of the parental characters in a monohybrid cross in F1 and expression of both in F2.

  • Characters are controlled by discrete units called factors.
  • In a dissimilar pair of factors one member of pair dominate the other. For example: allele of tallness (T) is dominant over allele of dwarf (t).
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