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| 1. |
Diffrentiate between identical and fraternal twins? |
| Answer» \tIdentical twinsFraternal twinsIdentical twins, this occur when an egg is fertilized by a sperm but the zygote formed get split into two each giving rise to one individual.Fraternal twins are non identical twins, here in this condition two eggs are fertilized by two sperms and therefore separate development of embryo takes place.They are monozygotic as they develop from a single zygote.\xa0They are dizygotic as the two individuals are developed from two different zygotes.They are genetically identical with same *** that is male-male or female-female.They are not genetically identical and may or may not have the same *** that is combinations are male-male, female-female or male-female.\t\xa0 | |