Why do some people have a cleft chin?
Quick Answer
A cleft chin usually comes from how the lower jaw and soft tissues develop before birth. It is influenced by genetics, though the exact inheritance is more complex than a simple dominant trait.
The Full Story
A cleft chin forms when the two sides of the lower jaw do not fuse completely in early development, leaving a visible groove or dimple in the chin. For a long time, it was taught as a classic dominant trait, but human traits like this are usually influenced by multiple genes and developmental factors. Cleft chins are seen in many populations and can vary from a slight indentation to a pronounced split. The feature is harmless and mostly affects facial appearance.
Key Facts
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Suggested video title for this topic:
"Why some chins have a natural split"
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