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Alu Element

All articles tagged with #alu element

science1 year ago

Uncovering the Genetic Basis of Human Tail-Loss Evolution

Scientists have discovered that the loss of tails in humans and great apes can be traced back to a genetic sequence called Alu element, previously dismissed as junk DNA, which inserted itself into the TBXT gene associated with tail length. This discovery challenges previous hypotheses and sheds light on the genetic mechanism behind taillessness. The findings may also have implications for understanding neural tube defects and other developmental shifts in early hominoids.

science1 year ago

"The Genetic Mutation That Led to Human Tail Loss 25 Million Years Ago"

A new study suggests that a single genetic tweak 25 million years ago caused humans to lose their tails, allowing for upright walking but also leading to birth defects like spina bifida. The tweak involved the insertion of Alu elements near the TBXT gene, preventing tail growth. While the loss of the tail may have provided evolutionary advantages, it also resulted in neural tube defects. The study sheds light on the genetic basis of tail loss in humans and its potential consequences.