In the spring of 2003, the Human Genome Project completed the task of sequencing the human genome, marking a significant moment for science and life on Earth. The genetic revolution that followed raised questions about the meaning of the genome, particularly the fact that most of it seems to be non-coding. Less than 2% of the genome consists of genes that code for proteins, while the rest was once considered junk DNA.
However, recent research has shown that this “dark genome” plays a crucial role in regulating gene expression and has evolutionary significance. Long repeat sequences like transposons can impact genetic mutations and adaptation, leading to the development of features like opposable thumbs and the loss of tails in humans and apes. Understanding these once-neglected parts of the genome is now a focus of medical research for potential therapies for genetic diseases.
This article addresses the question of what makes up the other 98% of DNA, shedding light on the hidden functions of the dark genome. If you have further questions or want more information, you can reach out on our Facebook and Instagram pages.
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Source: www.sciencefocus.com
