Why don't identical twins look the same?

 

Identical twins, also called as monozygotic twins, are created when a single egg and sperm pair separates a few days after fertilization. Because their DNA comes from a single source, their genetic composition is same, and their genetically determined qualities will be similar. Except in exceptionally rare situations of chromosomal defects, monozygotic twins are invariably of the same gender.

Fraternal, or dizygotic, multiples, on the other hand, occur when two different eggs are fertilised by two separate sperm in a single ovulation cycle. They share around half of their specific genes in a unique combination of genes from both parents, much like any other sibling group. The stereotype about identical twins is that they have been identical in every way: they appear alike, dress alike, and have comparable likes and dislikes. Parents with identical twins, on the other hand, know much better. Despite their genetic similarity, identical multiples are separate group. They have a lot of similarities, but they also have a lot of variances.

Yes! Identical twins have the same chromosomes and DNA because they were produced from the same sperm and egg. However, variations in the environment can have an impact on how they look and act. For example, one twin may have been placed in the womb in such a manner that she had more nutrition or blood flow than the other and therefore was born larger. As they grew older, the twins may have experienced different childhood diseases. Exercise, smoking, drinking, diet, work stress, and other factors influence their lifestyles. Because identical twins are exposed to progressively varied surroundings as they get older, they may begin to seem more and more distinct. While most twins grow up in the same home, there are a number of factors that influence the looks, personality, and interests of the children. Even as twins enter adolescence, they may try to develop distinct characteristics in attempt to build separate personalities.