Question

For studying the evolution of ________ divergent groups of organisms, one may choose either ______ nucleotide sequences, such as ribosomal RNA or protein sequences.

(a) less widely, slowly evolving

(b) more widely, slowly evolving

(c) more widely, rapidly evolving

(d) less widely, rapidly evolving

The question was posed to me by my school teacher while I was bunking the class.

The question is from Forms of Tree Representation topic in section Molecular Phylogenetics of Bioinformatics

Answer 1

Right option is (b) more widely, slowly evolving

To explain: If the phylogenetic relationships to be delineated are at the deepest level, such as between bacteria and eukaryotes, using conserved protein sequences makes more sense than using nucleotide sequences.