A man has a roan bull and a white cow. His first 5 calves turned to be 2 roans  and 3 white. Keeping in mind the fact that the roan is a color obtained when  cattle are heterozygous for the gene for red and white, how frequently (probability  of the phenotypes) would you expect such as a combination of offspring as that  obtained in this case?

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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.