Crossing over is a process of exchange of genetic materials between the non-sister chromatids of homologous chromosomes.
Significance:
- It produces new combination of genes and trait.
- It increases variability of organisms.
- Identity of each organism is due to crossing over.
- Crossing over is a source of raw materials for evolution of life.
- It increases immunity of organisms.
- It is a basis of heredity, law of natural selection, etc.
- It proves the linear arrangement of genes in a chromosome.
- Better adaptability and resistivity of organism is due to crossing over.
