From the beginning of the genetic. [Part 2]
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Identical Twin
Similar twin babies are similar. The fertilized embryos in the maternity are sometimes divided into two parts for an unknown reason. There are two children from these two embryos, they look the same. Because they share the same embryo. The actual reason for such twins is still unknown. It can be said, God's blessing.
Generally the appearance of identical twins, blood group, and disease prevention system all have a variety of variations. Although their DNA carries the same type of genes, the characteristics of the genes are not uniformly expressed in both bodies. Whether a gene is released will determine whether the promotor that acts as a switch outside the gene. And on this switch, there are some signals (ex : outdoor environment). Let's say that two identical twins were taken to two different countries in the short time. The environment of two different countries will give two different types of signals, which will result in adjusting the twins. If a child born in Bangladesh is brought up in Japan, then there will be a Japanese character among the child, Even his appearance will seem as Japanese.