just like eukaryotes, prokaryotes use rna in the process of making proteins. messenger RNA binds to the ribosome and is bound by transfer RNA molecules, which carry the amino acids that form proteins. shorter pieces of RNA are also used in eukaryotes and prokaryotes to regulate expression of genes and regulate translation (the process of making proteins). rna is also used as an enzyme in both prokaryotic and eukaryotic cells
Necessary is the wrong word. For a long-lived (DNA's role) nucleic acid, thymine offers an advantage of greater stability than uracil. Additionally, DNA appeared before prokaryotes and eukaryotes diverged.
Comments
> why do prokaryotes use rna?
1. History. They had ancestors that used RNA as the messenger.
2. There aren't any equivalents to ribosomes that can directly read DNA and translate it to a polypeptide.
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We don't do "why" questions very well.
Also consider that the longevity of the RNA is one means of control of gene expression.
just like eukaryotes, prokaryotes use rna in the process of making proteins. messenger RNA binds to the ribosome and is bound by transfer RNA molecules, which carry the amino acids that form proteins. shorter pieces of RNA are also used in eukaryotes and prokaryotes to regulate expression of genes and regulate translation (the process of making proteins). rna is also used as an enzyme in both prokaryotic and eukaryotic cells
Necessary is the wrong word. For a long-lived (DNA's role) nucleic acid, thymine offers an advantage of greater stability than uracil. Additionally, DNA appeared before prokaryotes and eukaryotes diverged.