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Would identical twins suggest the genes encode facial features to a high degree?
by TheSpiceIsLife 6y ago
Would identical twins suggest the genes encode facial features to a high degree?
- ashtonkem 6y agoNo, as identical twins also share whatever happened in utero. To draw a strong example, take fetal alcohol syndrome, which often causes facial changes. Two identical twins with FAS will share similar facial changes, but these changes will not actually be encoded in their dna, but instead will be the result of developmental history.
- kyberias 6y agoYou keep repeating that DNA doesn't have a strong role in determining what a person looks like. Yet everything we know about development including twin-studies seems to suggest that in fact it has strong role. For example, this scientific article published in Nature opens with this: "The human face is a complex trait under strong genetic control, as evidenced by the striking visual similarity between twins." https://www.nature.com/articles/srep45885 https://www.nature.com/articles/srep45885 These researchers who are _specialists_ on this field have no doubt. Why do you keep casting doubt on this?