Multiple Choice
Which of the following is NOT a hypothesis for the origin of viruses?
A) Viruses are escaped selfish genetic elements.
B) Viruses are escaped genes from modern genetic engineering experiments.
C) Viruses are the remnants of parasitic cellular organisms, selected for reduced size.
D) Viruses are relics of the RNA world.
Correct Answer:
Verified
Correct Answer:
Verified
Q27: The figures below illustrate two lineages with
Q28: A phylogenetic event horizon is a<br>A) point
Q29: Many proteins are now thought to consist
Q30: How did Spiegelman et al.'s experiment on
Q31: Natasha Paul and Gerald Joyce's experiment sought
Q33: When life first evolved, ocean temperatures were
Q34: List the properties typically associated with living
Q35: Why did the researchers conduct serial transfers
Q36: What was LUCA?<br>A) the first life-form<br>B) a
Q37: When researchers are trying to identify a