Extraterrestrial Origin of Organic Molecules
Analysis of a meteorite reveals that it contains amino acids with equal amounts of L- and D-enantiomers. This finding most strongly supports which of the following conclusions about the origin of organic molecules on Earth?
A
Some organic monomers may have extraterrestrial origins
B
Early Earth selected for D-amino acids initially
C
Biological processes produced these amino acids
D
Life must have evolved simultaneously on multiple planets
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