(1) A recessive allele must be present in double copy to show itself, and all green peas have two green alleles.

(2) And the values of recessive allele and some parameters of genetic diversity were also quite different using the square root method and the Bayesian method.

(3) Recessive allele : an allele, which only shows in dominant allele is present.

(4) Thus organism's phenotype-its physical appearance and properties-differs from its genotype, which may include both a dominant and recessive allele.

(5) The allele can divide into two different types: dominant allele and recessive allele.