The inheritance of colour in domestic pigeons involves several genes. The dominance hierarchy of three colour alleles is ash-red > blue-black > brown (ZA > ZB > Zb ). These colours are carried on the Z sex chromosome.  Unlike humans, female pigeons have two different sex chromosomes (Z and W) and males have two of the same kind of sex chromosome (ZZ). An ash-red male pigeon mated with a blue-black female pigeon. Is it possible to obtain a brown male pigeon? Answer (choose one from the picture ).

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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.