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Asteroid Bennu samples found to contain five nitrogenous bases crucial to supporting life - MSN
In addition to the five nitrogenous bases—adenine, guanine, cytosine, thymine and uracil—required for building DNA and RNA, ...
Science Daily5月
Life's building blocks in Asteroid Bennu samples - ScienceDaily
In addition to the five nitrogenous bases -- adenine, guanine, cytosine, thymine and uracil -- required for building DNA and RNA, the researchers also found xanthine, hypoxanthine, and nicotinic ...