Two unlinked genes, A and B, encode very similar enzymes involved in the production of purple flower pigments in a particular plant species. Recessive, non-functional alleles a and b are available. If the A and B genes are functionally redundant, so a single functional copy of either gene is sufficient for purple pigmentation, what proportion of the progeny of a cross between AaBb double heterozygotes is expected to have white flowers?

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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.