We will not exist if this event did not happen 600 million years ago

600 million years ago there was a mutation that happened, which was the origin of all modern life on Earth.

According to a recent study, millions of years ago, a random mutation occurred inadvertently triggering the evolution of all organisms.

Just a small change is more than enough for Earth - from where there are only single-celled organisms like bacteria - into "promised land" for multicellular organisms - including humans.

When cells divide, DNA also divides and this is the most mutable moment.

That's what scientists at Oregon University (USA) found. Accordingly, DNA is a sequence of proteins encoded, which plays a very important role in living cells. When cells divide, DNA also divides and this is the most mutable moment.

Most DNA mutations are harmful to the body.

Most DNA mutations are harmful to the body. However, there are times when new cells are capable of doing extraordinary things, just like in this case.

According to Ken Prehoda, a biologist at the University of Oregon, the DNA mutation has made unicellular organisms work together, forming multicellular life.

The origin of every creature

To this conclusion, Prehoda and colleagues studied a group of unicellular organisms called choanoflagellates .

They use the "protein reconstruction" technique to track genetic changes in this organism, see how it produces the proteins needed for multicellular life.

Choanoflagellates - the closest creature to a group of protozoan on Earth.

They found that just a single mutation in the gene that makes the tail of choanoflagellates is enough for them to combine with other individuals.

This is a very important step, turning unicellular organisms into multicellular species. And in particular, this type of mutation can be found in any creature on Earth.

People cannot survive and evolve without this mutation.

Experts say this mutation is not only responsible for the survival of multicellular organisms, but without it, even we - humans - cannot exist.

In addition, experts not only aim to find out how we evolved, but want to better understand cancer - which occurs when the multicellular group naturally stops working. According to Prehoda, better understanding of the disease may help to develop better treatments.