How do Mendel’s experiments show that traits are inherited independently?
Hint: An individual’s traits are acquired through the process of heredity. These traits are inherited from the parents, with each parent contributing to the genetic composition of the individual.
Complete answer:
Gregor Mendel conducted a series of experiments on pea plants that led to the discovery of fundamental hereditary principles in living organisms. He focused on understanding how traits or characteristics are transmitted from one generation to the next. For his studies, Mendel chose the common pea plant, *Pisum sativum*, examining seven pairs of contrasting traits present in the parent plants. He selected pure-breeding pea plants, which consistently showed only one form of each trait after fertilization.
During his experiments, Mendel crossed these pure-breeding pea plants. When two contrasting pairs of traits were selected for a cross, it was known as a dihybrid cross. This dihybrid cross was allowed to undergo fertilization. Mendel selected plants with dihybrid seed traits, such as yellow, round seeds and green, wrinkled seeds, and then crossed plants with yellow, round seeds with those having green, wrinkled seeds. After crossing, in the F2 generation, the offspring displayed both parental traits along with two new combinations: yellow, round seeds; green, wrinkled seeds; green, round seeds; and yellow, wrinkled seeds.
The traits or characteristics observed in the F2 generation showed that the original parental combinations separated and were inherited independently by the offspring in subsequent generations.
Note: Mendel chose seven pairs of contrasting traits for his experiments on the inheritance of characteristics in offspring. In a dihybrid cross, he selected two pairs of contrasting traits and crossed them. The resulting cross revealed the separation of the traits from both parents, demonstrating that these traits were inherited independently.
