Employing high-performance liquid chromatography-a process that uses
pressurized water to separate material into its component molecules-
astrochemist Yashiro Oba and colleagues analyzed two samples of the
Murchison meteorite that landed in Australia as well as soil from the
landing zone of the meteorite to determine the concentrations of various
organic molecules. By comparing the relative concentrations of types of
molecules known as nucleobases in the Murchison meteorite with those in
the soil, the team concluded that there is evidence that the nucleobases in
the Murchison meteorite formed in space and are not the result of
contamination on Earth.
Which choice best describes data from the table that support the team's
conclusion?
Choose 1 answer:
Adenine and xanthine were detected in both of the meteorite
samples and in the soil sample.
Isoguanine and hypoxanthine were detected in the Murchison
meteorite sample 1 but not in sample 2.
Isoguanine and purine were detected in both meteorite samples
but not in the soil sample.
Hypoxanthine and purine were detected in both the Murchison
meteorite sample 2 and in the soil sample.