Why do identical twins have the same genotype?

1) In the process of zygote crushing, the first blastomeres are formed,
2) the first cells of the fragmentation of the body (blastomeres) are the same, they are separated from each other,
3) a new organism with the same genotype develops from each.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.