If Two Organisms Have Similar RRNA Sequences,you Can Conclude That

Question

If two organisms have similar rRNA sequences,you can conclude that they
A)live in the same place.
B)evolved from a common ancestor.
C)will have different G-C ratios.
D)will both ferment lactose.
E)mated with each other.

Accepted Answer

Two organisms with similar rRNA sequences are likely to have evolved from a common ancestor. rRNA is highly conserved and evolves at a relatively slow rate, making it a useful tool for studying evolutionary relationships between organisms. By comparing rRNA sequences, scientists can construct phylogenetic trees that show the evolutionary history and relatedness of different species.