Question
Asked Oct 13, 2019

rRNA sequence analysis:
a. What are two advantages of using sequence analysis of ribosomal components in determining
evolutionary relatedness of organisms? Please explain why each is an advantage.

check_circleExpert Solution
Step 1

Ribosomal ribonucleic acid (rRNA) is the RNA component of the ribosome, which is essential for protein synthesis in all living organisms. The study of ribosomal RNA led to the definition of three separate “Domains” of life; Eukaryotes, Bacteria, and Archaea.

Step 2

Two advantages of using sequence analysis of ribosomal components in determining evolutionary relatedness of organisms are:

  • Ribosomal RNA sequences differ between species, due to mutation.
  • Through variation in rRNA sequences, we can distinguish organisms on approximately the species level and trace evolutionary relationships.
Step 3

Ribosomal RNA sequences differ between species, due to mutation- Ribosomal RNA is highly conserved and does not change due to natural selection. However, it differs subtly between species in their co...

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