Which of the Following Do Phylogenetic Comparisons of Secondary Structures

question 21

Multiple Choice

Which of the following do phylogenetic comparisons of secondary structures of rRNAs from a variety of species reveal?

• A)strikingly similar structures and a high degree of similarity in the nucleotide sequences of the rRNAs themselves
• B)strikingly similar structures and a low degree of similarity in the nucleotide sequences of the rRNAs themselves
• C)dissimilar structures and a high degree of similarity in the nucleotide sequences of the rRNAs themselves
• D)dissimilar structures and a low degree of similarity in the nucleotide sequences of the rRNAs themselves