Blog 6

Write an explanation of dominant and recessive alleles.

     The alleles determine what trait the organism has. A gene typically has 2 alleles. They are categorized into dominant and recessive alleles.
     The dominant allele is represented with a capital letter, for example, B. It produces the same phenotype whether its paired allele is identical or different. For example, if the phenotype of an organism is BB or Bb, it will have the trait of the dominant allele.
     The recessive allele is represented with a lower case letter, for example, b. It produces the same phenotype only when it is paired with another recessive allele. If an organism has phenotype bb, it will have the trait of the recessive allele.