Two pure-breeding tulips, one with white petals and one with red petals are crossed together and the dihybrid F₁ are purple. The dihybrid F₁ self-fertilizes to produce the F₂ that are found in the numbers shown in the table below. Phenotype of F₂ tulip petals Purple White Red Total Numbers of F2 plants 153 68 51 272 From these data determine the genotypes of the P and F₁. Show the phenotype and genotype ratios of the F₂ and explain the genetic interaction that is occurring. Use gene symbols A, a and B, b.

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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.