Which of the following is a bacterial molecule that has been used as a biosignature in analysis of the geological record?
A) RNA
B) hopanoid
C) ribosomal proteins
D) flagellin
E) DNA

Question

Quizplus · Accepted Answer

Hopanoids are bacterial lipids that have been detected in rocks as old as 2.7 billion years and are used as a biosignature of ancient microbial life. The other options are also present in bacteria, but hopanoids are specifically used for geological record analysis.

Which of the Following Is a Bacterial Molecule That Has