To study the phylogeny of eukaryotes,
A) 16S rRNA is used.
B) 18S rRNA is used.
C) 40S rRNA is used.
D) 80S rRNA is used.
E) 70S rRNA is used.

Question

Quizplus · Accepted Answer

18S rRNA is commonly used for studying the phylogeny of eukaryotes as it is present in all eukaryotic ribosomes and evolves slowly enough to provide informative sequence differences between different taxa. 16S rRNA is used for studying the phylogeny of prokaryotes while 40S, 80S, and 70S rRNA are specific to certain groups of eukaryotes and are not useful for studying overall eukaryotic phylogeny.

To Study the Phylogeny of Eukaryotes