Law of Independent Assortment and Law of Dominance


What does the Law of independent assortment state?

  • Segregation is independent of the other
  • The law of independent assortment states that genes of independent traits assort independently during gamete

For example, the alleles of gene ‘A’, that is ‘A’ and ‘a’, will get assorted in the gametes

independent of the two alleles of gene ‘B’.

  • So, the genes can get distributed randomly during gamete

Meiosis

                  Meiosis

What does the Law of Dominance state?

  • The law of dominance states that an organism with at least one dominant allele will display the effect of the dominant
  • In a homozygous individual, the same allele is

For example, in ‘BB’ and ‘bb’, the individual with genotype ‘BB’ will have black eyes and the one with genotype ‘bb’ will have brown eyes.

A heterozygous individual is with genotype ‘Bb’. the phenotype of this person will be black

eyes because the individual has one dominant gene.

  • So, the presence of merely one dominant gene is enough for the expression of the dominant character.

Homozygous individual and Heterozygous individual

Homozygous individual and Heterozygous individual