Multiple Choice
Deduce why viruses are excluded from the ribosomal RNA-based tree of life.
A) Some viruses contain multiple strands of RNA.
B) Their genetic elements cannot be sequenced.
C) They can infect other organisms, which complicates the genetic comparisons.
D) They lack ribosomal RNA (rRNA) .
Correct Answer:

Verified
Correct Answer:
Verified
Q76: Regarding early life on Earth<br>A) microbial life
Q77: Electron microscopy has greater _ than light
Q78: What type of microscope would you use
Q79: Compare and contrast the works of Louis
Q80: The production of human proteins (e.g., insulin)
Q82: A pure culture<br>A) is sterile.<br>B) is a
Q83: Microbes that live at high temperatures in
Q84: Microbial ecology is the study of<br>A) microbial
Q85: Both environmental conditions and nutrient resources strongly
Q86: The first documented description of a microorganism