In this article we will discuss about the Mendel's experiment with garden pea plant. In 1856 Mendel began his experiments on plant hybridisation with garden peas in the monastery garden. Although similar work had already been done by contemporary botanists, the significant features of all these experiments had been overlooked because the investigators made overall observations of all inherited characters [...]
In this article we will discuss about the Mendel's tri-hybrid and multi-hybrid crosses. Mendel extended his observations to tri-hybrid crosses involving three pairs of contrasting characters. The characters he considered were: seed shape—smooth (S) vs. wrinkled (s); colour of cotyledons—yellow (Y) vs. green (y); and flower colour—violet (V) vs. white (v). The F1 hybrid produces 8 types of gametes. These [...]
The following points highlight the six main types of genes. The types are: 1. Complementary Genes 2. Duplicate Genes 3. Polymeric Genes 4. Modifying Genes 5. Lethal Genes 6. Moveable Genes. Type # 1. Complementary Genes: Bateson and Punnett crossed two different white flowered varieties of sweet pea and obtained an F1 progeny of red flowered plants. On self-pollination the [...]