The basic features of the mechanism of inheritance are as follows:
∙ Genes control characters.
∙ Genes are present in two or more forms.
∙ One form of a gene may be dominant over another. ∙ Genes are present in chromosomes.
∙ Individual genes exist in two forms that may be similar or dissimilar.
∙ Two forms of the gene separate at the time of gamete formation.
∙ Two forms of genes are brought together in the zygote.