What complications might there be if there is something wrong with your circulatory system?

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.