1. Rearrangement of genes: During crossing over, segments are exchanged between two non-sister chromatids. As a result, new arrangements of genes occur in the chromosomes.
2. Genetic Variation: Crossing over results in genetic variation in organisms. New varieties are created in crop plants through crossing over.
3. Genetic modification: Genetic modification can be done by artificial crossing over. This is why crossing over plays an important role in breeding.
4. Creation of Biodiversity: Biodiversity is the characteristic and characteristic difference between one organism and another organism. Differences between two plants or animals of the same species belong to biodiversity. Biodiversity is created due to changes in the position and arrangement of genes. Siddique Publications
5. Survival in new environments: Characteristic changes occur in organisms due to crossing over. In this the organism acquires the ability to survive in the new environment and survive.
6. Preparation of genetic map: By determining the percentage of crossing over, the position of the gene on the chromosome is determined and the chromosome map is prepared.
7. Genetic research: Genetic research has created a great stir worldwide. Crossing over is an interesting topic in gene theory research.
8. Aid in evolution: Crossing over results in trait changes, biodiversity and increased ability to survive in new environments. As a result, evolution is possible.
9. Breeding of crop plants: Crossover can be used to produce desirable traits in crop plants. Improved varieties of crops can be created.
10. In breeding: Alteration in heredity by artificial crossing over. Hence it has a wide role in reproductive science.
11. Linear arrangement of chromosomes: Linear arrangement of genes in chromosomes occurs due to crossing over.
12. Preparation of Chromosome Map: First the percentage of crossing over is determined. Then the location of the gene on the chromosome is determined and a map of the chromosome is made.
Crossing over is a very important process in the living world. Rearrangement of hereditary traits in chromosomes occurs through crossing over. The result is variation. The early beginnings of evolution in species. Dr. Siddique Publications