One gene pair will interact so as to control the expression of a second gene pair                                                                                           One example is the ABO blood group system.                                                                                           When 3 or more pairs of genes control the expression of a trait.   matched with: multiple alleles incomplete dominance polygenics dominance epistasis

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.