Question
Biology Question on Structure of DNA and RNA
Sequence of which of the following is used to know the phylogeny
A
m-RNA
B
r-RNA
C
t-RNA
D
DNA
Answer
r-RNA
Explanation
Solution
The correct option is (B) : r-RNA
A molecule that hasn't changed significantly through time must be researched in order to identify phylogeny, which is the resemblance between creatures and their ancestors. Ribosomal RNA is therefore utilised to research the phylogeny since, according to Carl Woese, they are old molecules that are found throughout the lineage. These are the same ancestral molecules that may be employed in these experiments since the sequences are still preserved.