JWilliam Schopf Found Fossils in Ancient Australian Rocks with an Internal

question 209

Multiple Choice

J.William Schopf found fossils in ancient Australian rocks with an internal structure unlikely to occur through abiotic processes.Additional evidence that these were fossil cyanobacteria includes

• A) a carbon isotope ratio (¹³C:¹²C) consistent with translation of DNA.
• B) a carbon isotope ratio (¹³C:¹²C) consistent with photosynthetic activity.
• C) fossilized DNA.
• D) fossilized RNA.
• E) micrometeorites from Mars with amino acids.

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