the earliest organisms appeared on earth that we have direct evidence for in 3.465-billion-year.
the earliest organisms appeared on earth that we have direct evidence for in 3.465-billion-year.
when did the earliest organisms appear on earth that we have direct evidence for?
3.465-billion-year
Na
Na
if the split genes originated from random primordial dna sequences, as proposed in the split gene theory, there could be evidence that they were present in the earliest organisms. actually, using comparative analysis of the modern genome data from several living organisms, scientists have found that the characteristics of split genes that are present in modern eukaryotes trace back to the earliest organisms that came on earth. these studies show that the earliest organisms could have contained the intron-rich split genes and complex proteins that occur in today's living organisms.
split gene theory