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AP Biology 7.12 A Describe the Scientific Evidence That Supports Models of the Origin of Life on Earth Questions

Practise AP Biology 7.12.A questions by evaluating geological, fossil, experimental and RNA-world evidence for models of life’s origin.

Syllabus
Effective Fall 2025
Course
AP Biology

Exam points

  • use Earth history, geological evidence and earliest fossils to establish a plausible range for the origin of life
  • explain the RNA world assumptions of replication, base-pairing and catalytic RNA
  • interpret early-Earth experiments and testable questions about organic molecule formation

AP Biology 7.12 A Describe the Scientific Evidence That Supports Models of the Origin of Life on Earth Questions question 1

[Maximum number: 1]

A researcher hypothesizes that RNA molecules
were present in the most recent common ancestor
of all living organisms. Which of the following
scientific questions would best test the
hypothesis?

A

Is it possible to produce an RNA polymer in
a laboratory setting?

B

How many distinct functions can a particular
RNA molecule perform in a cell?

C

How many different monomers of RNA are
found in a eukaryotic cell?

D

Do any known organisms function entirely
without RNA?

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