What is the Difference Between Similar But Different Things, Terms, and Objects

What is the Difference between Monohybrid Cross and Dihybrid Cross

We see living organisms all around us, plants, animals, microorganisms and human. They all inherit characters from their parents. Gregor Mendel was considerd as the father of modern genetics, he was the first person to conclude that, there is a specific pattern of inheritance. For this purpose he did many experiments, monohybrid cross and dihybrid cross were the most important ones, to know the pattern of inheritance.

Monohybrid cross

Monohybrid cross is the breeding experiment, conducted between two parents, who have all similar characters, except one. If we take the example of pea plant, on which Mendel based all his experiments, their all traits are same but one is tall and other is dwarf. In this case, tall is dominant trait and dwarf is recessive. In first generation, all plants will be tall, but in second generation we will get three tall and one dwarf plant.

Dihybrid Cross

As the name suggests, “di” means two, in this type of breeding experiment, parents differ in two traits. In cases of pea plants, parent plants will have not only different heights but the color of their flowers will also be different. Like tall plants with red flowers and dwarf plants with white flowers. In this case, results will be different, as compared to monohybrid cross.

Monohybrid cross vs Dihybrid cross

Monohybrid cross and dihybrid cross are different types of breeding experiments. Monohybrid helps to understand the transference of one trait from parents to offspring, whereas in dihybrid cross we try to find all possible combinations of a set of genes. In monohybrid cross is usually done for once, whereas dihybrid cross is done twice. In monohybrid cross, parent organisms are heterogeneous for one character but in dihybrid cross, they are hydrogenous for two characters. These experiments supported the breeding principles and made things simple and understandable for generations to come.




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