20) Which of the following sequences is correct? A) DNA - mRNA- tRNA - protein
B) DNA-mRNA - rRNA - protein
C) DNA - ribosome - mRNA - protein
D) DNA - tRNA - mRNA - protein
E) none of the above

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. b. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. c. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails.

Explain the significance of thesaurus geographicus

During convection, less dense fluid rises and denser fluid sinks.