State and explain the Law of dominance with suitable example.
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Law of Dominance :
This is a Mendelian law of inheritance which states, when 2 homozygous individuals with 1 or more sets of contrasting characters are crossed, the dominant characters are expressed in the F1 hybrids but the recessive characters remain unexpressed.
Example:
Blue flowered homozygous plant 'BB' (dominant allele) when crossed with white flowered homozygous plant 'bb' (recessive allele) gives the offspring hybrid as blue flowered heterozygous plant 'Bb' in the F1.
Here the F1 has both dominant and recessive alleles, but only the dominant allelic trait is expressed in the phenotype.
This is a Mendelian law of inheritance which states, when 2 homozygous individuals with 1 or more sets of contrasting characters are crossed, the dominant characters are expressed in the F1 hybrids but the recessive characters remain unexpressed.
Example:
Blue flowered homozygous plant 'BB' (dominant allele) when crossed with white flowered homozygous plant 'bb' (recessive allele) gives the offspring hybrid as blue flowered heterozygous plant 'Bb' in the F1.
Here the F1 has both dominant and recessive alleles, but only the dominant allelic trait is expressed in the phenotype.
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