An mRNA molecule leaves the nucleus containing the following base sequence: CAC GUA GUA CCC. Which is the correct complementary base sequence for translation?
CAC GTA GTA CCC
GUG CAU CAU GGG
CAC GUA GUA CCC
GTG CAT CAT GGG

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.