A population of white leghorn chicken has the following dominant mutations: crested head, the condition of having elongated feathers on the crown of the head, is dominant to normal-feathered head • naked neck, the condition having no neck feathers, is dominant to normal-feathered neck Both are unlinked autosomal genes. A rooster is heterozygous for both of these traits. It mates with a hen that is also heterozygous for both traits. What is the percentage of their offspring that are predicted to have a normal-feathered head and naked neck? (Round your answer to one decimal place).

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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.